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Höft MA, Burgers WA, Riou C. The immune response to SARS-CoV-2 in people with HIV. Cell Mol Immunol 2024; 21:184-196. [PMID: 37821620 PMCID: PMC10806256 DOI: 10.1038/s41423-023-01087-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 09/12/2023] [Indexed: 10/13/2023] Open
Abstract
This review examines the intersection of the HIV and SARS-CoV-2 pandemics. People with HIV (PWH) are a heterogeneous group that differ in their degree of immune suppression, immune reconstitution, and viral control. While COVID-19 in those with well-controlled HIV infection poses no greater risk than that for HIV-uninfected individuals, people with advanced HIV disease are more vulnerable to poor COVID-19 outcomes. COVID-19 vaccines are effective and well tolerated in the majority of PWH, though reduced vaccine efficacy, breakthrough infections and faster waning of vaccine effectiveness have been demonstrated in PWH. This is likely a result of suboptimal humoral and cellular immune responses after vaccination. People with advanced HIV may also experience prolonged infection that may give rise to new epidemiologically significant variants, but initiation or resumption of antiretroviral therapy (ART) can effectively clear persistent infection. COVID-19 vaccine guidelines reflect these increased risks and recommend prioritization for vaccination and additional booster doses for PWH who are moderately to severely immunocompromised. We recommend continued research and monitoring of PWH with SARS-CoV-2 infection, especially in areas with a high HIV burden.
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Affiliation(s)
- Maxine A Höft
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
- Division of Medical Virology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Wendy A Burgers
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa.
- Division of Medical Virology, Department of Pathology, University of Cape Town, Cape Town, South Africa.
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Cape Town, South Africa.
| | - Catherine Riou
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa.
- Division of Medical Virology, Department of Pathology, University of Cape Town, Cape Town, South Africa.
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Cape Town, South Africa.
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Rudmann KC, Cooper G, Marjuki H, Reingold A, Barnes M, Petit S, Moore A, Harrison LH, Lynfield R, Khanlian SA, Anderson BJ, Martin T, Schaffner W, McNamara LA, Rubis AB. Meningococcal Disease in Persons With HIV Reported Through Active Surveillance in the United States, 2009-2019. Open Forum Infect Dis 2024; 11:ofad696. [PMID: 38288348 PMCID: PMC10823417 DOI: 10.1093/ofid/ofad696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024] Open
Abstract
Persons with HIV (PWH) are at increased risk for bacterial infections, and previous publications document an increased risk for invasive meningococcal disease (IMD) in particular. This analysis provides evidence that PWH face a 6-fold increase in risk for IMD based on Active Bacterial Core surveillance data collected during 2009-2019.
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Affiliation(s)
- Keegan C Rudmann
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA (now with Banner Health, Phoenix, Arizona, USA)
| | - Gabrielle Cooper
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA (now with Banner Health, Phoenix, Arizona, USA)
| | - Henju Marjuki
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA (now with Banner Health, Phoenix, Arizona, USA)
| | - Arthur Reingold
- School of Public Health, University of California, Berkeley, California, USA
| | - Meghan Barnes
- Colorado Department of Public Health and Environment, Denver, Colorado, USA
| | - Susan Petit
- Connecticut Department of Public Health, Hartford, Connecticut, USA
| | - Ashley Moore
- Georgia Department of Public Health, Atlanta, Georgia, USA
| | - Lee H Harrison
- Departments of Epidemiology and Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Ruth Lynfield
- Minnesota Department of Health, St. Paul, Minnesota, USA
| | - Sarah A Khanlian
- University of New Mexico Emerging Infections Program, Albuquerque, New Mexico, USA
| | | | - Tasha Martin
- Oregon Health Authority Public Health Division, Portland, Oregon, USA
| | - William Schaffner
- Department of Preventive Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Lucy A McNamara
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA (now with Banner Health, Phoenix, Arizona, USA)
| | - Amy B Rubis
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA (now with Banner Health, Phoenix, Arizona, USA)
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Wu L, Xia D, Xu K. Multi-Clinical Factors Combined with an Artificial Intelligence Algorithm Diagnosis Model for HIV-Infected People with Bloodstream Infection. Infect Drug Resist 2023; 16:6085-6097. [PMID: 37719647 PMCID: PMC10503519 DOI: 10.2147/idr.s423709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/29/2023] [Indexed: 09/19/2023] Open
Abstract
Purpose Although highly active antiretroviral therapy (HA-ART) can effectively suppress the disease process in patients with acquired immunodeficiency syndrome (AIDS), opportunistic infections, mainly bloodstream infections (BSI), are still the main cause of death in people living with HIV. There is no effective diagnostic strategy for HIV-infected people with BSI. This study aimed to develop an AI diagnostic model with high sensitivity to improve the early detection of HIV-infected people with BSI. Patients and Methods This study retrospectively analyzed the 40 clinical factors of 498 HIV-infected people (171 with BSI positive and 327 with BSI negative) who admitted to Wenzhou Central Hospital from September 2014 to July 2021. This study used the hospital information management system to collect the clinical characteristics, laboratory and imaging examination results, and clinical diagnosis of the two groups. The diagnostic results of all patients were in line with the diagnostic criteria of the Chinese Guidelines for the Diagnosis and Treatment of AIDS (2021 Edition), and the BSI diagnosis was in line with the diagnostic criteria of sepsis and bacteremia in Practical Internal Medicine (13th Edition). On this basis, various risk prediction models were established by combining 8 artificial intelligence (AI) algorithms in the training set and validating the diagnosis performance in the testing set. The model with the best diagnostic performance was selected as the final diagnostic model. Results The clinical characteristics of HIV-infected people with BSI are atypical, and the pathogens in this area are mainly fungi. Ten risk factors were selected: low level of hemoglobin, CD4+T cell and platelets, high level of lactate dehydrogenase and blood urea nitrogen, splenomegaly, without ART treatment, strip shadow, nodular shadow, and shock. The combination of the ten risk factors, age, gender and the "svmRadial" model can identify the HIV-infected people with BSI from the HIV-infected people without BSI with an area under the curve of 0.916 and a sensitivity and specificity of 0.824 and 0.855, respectively. Conclusion The model showed excellent performance in diagnosing HIV-infected people with BSI. Internal and external validation showed that the diagnosis model had high clinical application value.
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Affiliation(s)
- Lianpeng Wu
- Department of Clinical Laboratory Medicine, The Ding Li Clinical College of Wenzhou Medical University, Wenzhou, 325000, People’s Republic of China
- Department of Clinical Laboratory Medicine, Wenzhou Central Hospital, Wenzhou, 325000, People’s Republic of China
- Key Laboratory of Diagnosis and Treatment of New and Recurrent Infectious Diseases of Wenzhou, Wenzhou, 325000, People’s Republic of China
| | - Dandan Xia
- Department of Clinical Laboratory Medicine, The Ding Li Clinical College of Wenzhou Medical University, Wenzhou, 325000, People’s Republic of China
- Department of Clinical Laboratory Medicine, Wenzhou Central Hospital, Wenzhou, 325000, People’s Republic of China
- Key Laboratory of Diagnosis and Treatment of New and Recurrent Infectious Diseases of Wenzhou, Wenzhou, 325000, People’s Republic of China
| | - Ke Xu
- Department of Clinical Laboratory Medicine, The Ding Li Clinical College of Wenzhou Medical University, Wenzhou, 325000, People’s Republic of China
- Department of Clinical Laboratory Medicine, Wenzhou Central Hospital, Wenzhou, 325000, People’s Republic of China
- Key Laboratory of Diagnosis and Treatment of New and Recurrent Infectious Diseases of Wenzhou, Wenzhou, 325000, People’s Republic of China
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Tan Y, Chen Z, Zeng Z, Wu S, Liu J, Zou S, Wang M, Liang K. Microbiomes Detected by Bronchoalveolar Lavage Fluid Metagenomic Next-Generation Sequencing among HIV-Infected and Uninfected Patients with Pulmonary Infection. Microbiol Spectr 2023; 11:e0000523. [PMID: 37436163 PMCID: PMC10434007 DOI: 10.1128/spectrum.00005-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 06/25/2023] [Indexed: 07/13/2023] Open
Abstract
Comparison of lung microbiomes between HIV-infected and uninfected patients with pulmonary infection by metagenomic next-generation sequencing (mNGS) has not been described in China. The lung microbiomes detected in bronchoalveolar fluid (BALF) by mNGS among HIV-infected and uninfected patients with pulmonary infection were reviewed in the First Hospital of Changsha between January 2019 and June 2022. In total, 476 HIV-infected and 280 uninfected patients with pulmonary infection were enrolled. Compared with HIV-uninfected patients, the proportions of Mycobacterium (P = 0.011), fungi (P < 0.001), and viruses (P < 0.001) were significantly higher in HIV-infected patients. The higher positive rate of Mycobacterium tuberculosis (MTB; P = 0.018), higher positive rates of Pneumocystis jirovecii and Talaromyces marneffei (all P < 0.001), and higher positive rate of cytomegalovirus (P < 0.001) contributed to the increased proportions of Mycobacterium, fungi, and viruses among HIV-infected patients, respectively. The constituent ratios of Streptococcus pneumoniae (P = 0.007) and Tropheryma whipplei (P = 0.002) in the bacteria spectrum were significantly higher, while the constituent ratio of Klebsiella pneumoniae (P = 0.005) was significantly lower in HIV-infected patients than in HIV-uninfected patients. Compared with HIV-uninfected patients, the constituent ratios of P. jirovecii and T. marneffei (all P < 0.001) in the fungal spectrum were significantly higher, while the constituent ratios of Candida and Aspergillus (all P < 0.001) were significantly lower in HIV-infected patients. In comparison to HIV-infected patients without antiretroviral therapy (ART), the proportions of T. whipplei (P = 0.001), MTB (P = 0.024), P. jirovecii (P < 0.001), T. marneffei (P < 0.001), and cytomegalovirus (P = 0.008) were significantly lower in HIV-infected patients on ART. Significant differences in lung microbiomes exist between HIV-infected and uninfected patients with pulmonary infection, and ART influences the lung microbiomes among HIV-infected patients with pulmonary infection. IMPORTANCE A better understanding of lung microorganisms is conducive to early diagnosis and treatment and will improve the prognosis of HIV-infected patients with pulmonary infection. Currently, few studies have systematically described the spectrum of pulmonary infection among HIV-infected patients. This study is the first to provide comprehensive information on the lung microbiomes of HIV-infected patients with pulmonary infection (as assessed by more sensitive metagenomic next-generation sequencing of bronchoalveolar fluid) compared with those from HIV-uninfected patients, which could provide a reference for the etiology of pulmonary infection among HIV-infected patients.
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Affiliation(s)
- Yuting Tan
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
| | - Zhong Chen
- Department of Infection and Immunology, The First Hospital of Changsha City, Changsha, China
| | - Ziwei Zeng
- Graduate Collaborative Training Base of the First Hospital of Changsha, Hengyang Medical School, University of South China, Hengyang, China
| | - Songjie Wu
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
- Department of Nosocomial Infection Management, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jie Liu
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Shi Zou
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
| | - Min Wang
- Department of Infection and Immunology, The First Hospital of Changsha City, Changsha, China
| | - Ke Liang
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
- Department of Nosocomial Infection Management, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Engineering Center for Infectious Disease Prevention, Control and Treatment, Wuhan, China
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Tinggaard M, Slotved HC, Jørgensen CS, Kronborg G, Benfield T. Predictors of serological non-response to the 13-valent pneumococcal conjugate vaccine followed by the 23-valent polysaccharide vaccine among adults living with HIV. Vaccine 2023; 41:4414-4421. [PMID: 37316406 DOI: 10.1016/j.vaccine.2023.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/16/2023] [Accepted: 06/04/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND People living with HIV (PLWH) have higher incidence of pneumococcal disease compared to people without HIV. Immunization with pneumococcal vaccines is recommended, but serological non-response to pneumococcal vaccination is common for largely unknown reasons. METHODS PLWH on antiretroviral treatment and no prior pneumococcal vaccination received the 13-valent pneumococcal conjugate vaccine (PCV13) followed 60 days later by the 23-valent polysaccharide vaccine (PPV23). Serological response was evaluated 30 days post-PPV23 by antibodies against 12 serotypes covered by both PCV13 and PPV23. Seroprotection was defined as a ≥2-fold rise to a level above 1.3 µg/ml in geometric mean concentration (GMC) across all serotypes. Associations with non-responsiveness were evaluated by logistic regression. RESULTS Fifty-two virologically suppressed PLWH (median age of 50 years (IQR 44-55) and median CD4 count of 634 cells/mm3 (IQR 507-792)) were included. Forty-six percent (95 % CI 32-61, n = 24) achieved seroprotection. Serotypes 14, 18C and 19F had the highest, and serotypes 3, 4 and 6B the lowest GMCs. Pre-vaccination GMC levels less than 100 ng/ml were associated with increased odds of non-responsiveness compared to levels above 100 ng/ml (adjusted OR 8.7, 95 % CI 1.2-63.6, p = 0.0438). CONCLUSION Less than half of our study population achieved anti-pneumococcal seroprotective levels following PCV13 and PPV23 immunization. Low pre-vaccination GMC levels were associated with non-response. Further research is required to optimize vaccination strategies that achieve higher seroprotection in this high-risk group.
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Affiliation(s)
- Michaela Tinggaard
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark.
| | - Hans-Christian Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | | | - Gitte Kronborg
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Benfield
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Mohapi L, Pinedo Y, Osiyemi O, Supparatpinyo K, Ratanasuwan W, Molina JM, Dagan R, Tamms G, Sterling T, Zhang Y, Pedley A, Hartzel J, Kan Y, Hurtado K, Musey L, Simon JK, Buchwald UK. Safety and immunogenicity of V114, a 15-valent pneumococcal conjugate vaccine, in adults living with HIV. AIDS 2022; 36:373-382. [PMID: 34750291 PMCID: PMC8815827 DOI: 10.1097/qad.0000000000003126] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To evaluate safety and immunogenicity of V114 [15-valent pneumococcal conjugate vaccine (PCV) containing serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 22F, 23F, and 33F], followed by 23-valent pneumococcal polysaccharide vaccine (PPSV23) 8 weeks later, in adults living with HIV. DESIGN In this phase 3 study (V114-018; NCT03480802), pneumococcal vaccine-naive adults with HIV (CD4+ cell count ≥50 cells/μl, plasma HIV RNA <50 000 copies/ml, receiving antiretroviral therapy) were randomized 1 : 1 to receive one dose of V114 or licensed 13-valent PCV (PCV13) on day 1; participants received PPSV23 at week 8. METHODS Adverse events and serotype-specific opsonophagocytic activity (OPA) and immunoglobulin G (IgG) antibodies were evaluated after each vaccination. RESULTS Of 302 participants enrolled, 292 (96.7%) completed the study. Proportions of participants experiencing at least one adverse event were 73.0 and 62.7% in the V114 and PCV13 groups following PCV and 60.7 and 71.6% following PPSV23. Most solicited adverse events were of mild or moderate severity and short duration. OPA geometric mean titers (GMTs) and IgG geometric mean concentrations (GMCs) were generally comparable between groups for shared serotypes at day 30 and maintained at week 12. OPA and IgG responses for additional serotypes in V114 (22F, 33F) were higher following V114 than PCV13 at day 30 but comparable at week 12, 30 days post-PPSV23. CONCLUSION In pneumococcal vaccine-naive adults living with HIV, V114 was well tolerated and induced immune responses for all 15 pneumococcal serotypes. V114 can be followed by PPSV23 8 weeks later to broaden serotype coverage.
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Affiliation(s)
- Lerato Mohapi
- University of the Witwatersrand, Johannesburg, South Africa
| | | | | | | | | | | | - Ron Dagan
- Ben-Gurion University, Beer-Sheva, Israel
| | | | | | - Ying Zhang
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | | | - Jon Hartzel
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | - Yanqing Kan
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | - Kim Hurtado
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | - Luwy Musey
- Merck & Co., Inc., Kenilworth, New Jersey, USA
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Mengesha T, Embiale T, Azmeraw M, Kerebeh G, Mulatu S, Meseret F, Birhanu M. Incidence of Pneumonia and Predictors Among Human Immunodeficiency Virus Infected Children at Public Health Institutions in the Northwest Part of Ethiopia: Multicenter Retrospective Follow-Up Study. Pediatric Health Med Ther 2022; 13:13-25. [PMID: 35185354 PMCID: PMC8847134 DOI: 10.2147/phmt.s345638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/29/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Pneumonia is an inflammation of the lung parenchymal structure secondary to hematogens spread of pathogens, inhalation, or aspiration. It is also one of the most frequently occurring opportunistic infections in HIV-infected children. In Ethiopia, data on the incidence and predictors of opportunistic infection, especially pneumonia, among HIV-infected children is very limited. Hence, this study aimed to assess the incidence of pneumonia and predictors among HIV-infected children at public health institutions in the Northwest part of Ethiopia. Methods An institution-based retrospective cohort study was conducted among 342 HIV-infected children at public health institutions from January 1, 2013 to December 30, 2020. Log rank test was used to compare the survival curves between different explanatory variables. Bivariable Cox proportional hazards regression model was employed for each explanatory variable to check the association with the outcome variable. Variables found to have a p-value of < 0.25 in the bivariable analysis were candidates for the multi-variable proportional hazard model. Cox proportional hazards model was used at 5% level of significance to identify predictors of pneumonia. Results This study included 342 records of HIV-infected children who started antiretroviral therapy between the periods of January 1, 2013 to December 30, 2020. The overall incidence rate of pneumonia during the follow-up time was 5.57 (95% CI: 4.4, 7.0) per 100 child-years of observation. Those children who did not take cotrimoxazole preventive therapy (AHR: 3, 95% CI: 1.40, 6.44), being underweight at baseline (AHR: 2.6, 95% CI: 1.41, 4.86), having baseline advanced disease (clinical stages III and IV) (AHR: 2.8, 95% CI: 1.30, 6.04), and presenting with recently detected viral load (AHR: 5.9, 95% CI: 2.53, 14.06), were more likely to develop pneumonia. Conclusion Pneumonia incidence rate was high. Providing prophylaxis and nutritional supplementation for those children with baseline advanced disease stage, low weight for age and detectable viral load would reduce pneumonia occurrence.
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Affiliation(s)
- Teshale Mengesha
- Department of Pediatrics and Child Health Nursing, College of Medicine and Health Sciences, Dire Dawa University, Dire Dawa, Ethiopia
- Correspondence: Teshale Mengesha, Pediatrics and Child Health Nursing at Dire Dawa University, Dire Dawa, Ethiopia, Email
| | - Tsegasew Embiale
- Department of Pediatrics and Child Health Nursing, College of Medicine and Health Sciences, Dire Dawa University, Dire Dawa, Ethiopia
| | - Molla Azmeraw
- Department of Nursing, College of Health Sciences, Woldia University, Woldia, Ethiopia
| | - Gashaw Kerebeh
- Department of Pediatrics and Child Health Nursing, College of Medicine and Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Sileshi Mulatu
- Department of Pediatrics and Child Health Nursing, School of health Sciences, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Fentahun Meseret
- Department of Pediatrics and Child Health Nursing, School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Minyichil Birhanu
- Department of Pediatrics and Child Health Nursing, School of health Sciences, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
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Alem K. Prevalence of bacterial pneumonia among HIV-Seropositive patients in East Africa: Review. COGENT MEDICINE 2021. [DOI: 10.1080/2331205x.2021.2015883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Kindu Alem
- Faculty of Natural and Computational Sciences, Department of Biology, Woldia University, Woldia, Ethiopia
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9
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Tinggaard M, Slotved HC, Fuursted K, Storgaard M, Dröse S, Johansen IS, Thorsteinsson K, Kronborg G, Lebech AM, Benfield T. Oral and anal carriage of Streptococcus pneumoniae among sexually active men with HIV who have sex with men. J Infect Dis 2021; 225:1575-1580. [PMID: 34622276 DOI: 10.1093/infdis/jiab512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 10/04/2021] [Indexed: 11/12/2022] Open
Abstract
People with HIV are at increased risk of pneumococcal disease. We investigate oral and anal carriage rates of Streptococcus pneumoniae by molecular methods among 82 men with HIV who have sex with men (MSM). A questionnaire, oral wash and anal swab samples were obtained at baseline and 12 months. Oral carriage rates were 32.9% (27/82) at baseline and 41.7% (30/72) at follow-up. Anal carriage rates were 2.4% (2/82) at baseline and 2.9% (2/70) at follow-up. Genogroup 24 was predominant. Results suggest high oral carriage rates of S. pneumoniae among MSM living with HIV. A minority were anal carriers.
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Affiliation(s)
- Michaela Tinggaard
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Hans-Christian Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Merete Storgaard
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Sandra Dröse
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark.,Research Unit for Infectious Diseases, Odense University Hospital, University of Southern Denmark, Denmark
| | - Isik Somuncu Johansen
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark.,Research Unit for Infectious Diseases, Odense University Hospital, University of Southern Denmark, Denmark
| | - Kristina Thorsteinsson
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Gitte Kronborg
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anne-Mette Lebech
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Thomas Benfield
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Kirwan PD, Amin-Chowdhury Z, Croxford SE, Sheppard C, Fry N, Delpech VC, Ladhani SN. Invasive Pneumococcal Disease in People With Human Immunodeficiency Virus in England, 1999-2017. Clin Infect Dis 2021; 73:91-100. [PMID: 32789498 DOI: 10.1093/cid/ciaa522] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 08/12/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The 7-valent and 13-valent pneumococcal conjugate vaccines (PCVs) were introduced into the UK childhood immunization program in 2006 and 2010, respectively, with high effectiveness and resulting in both direct and indirect protection. We describe the epidemiology of invasive pneumococcal disease (IPD) in adults with human immunodeficiency virus (HIV) in England following the introduction of both PCVs. METHODS Data on a national cohort of people with HIV were linked to confirmed IPD cases in adults aged ≥ 15 years during 1999-2017. Date of HIV infection was estimated using a CD4 slope decline algorithm. RESULTS Among 133 994 adults with HIV, 1453 developed IPD during 1999-2017, with 70% (1016/1453) developing IPD ≥ 3 months after their HIV diagnosis. IPD and HIV were codiagnosed within 90 days in 345 (24%) individuals. A missed opportunity for earlier HIV diagnosis was identified in 6% (89/1453), mostly in earlier years. IPD incidence in people with HIV increased from 147/100 000 in 1999 to 284/100 000 in 2007 before declining and stabilizing between 92 and 113/100 000 during 2014-2017. Mean annual IPD incidence was lower among those receiving antiretroviral therapy during 2014-17 (68 vs 720/100 000; incidence rate ratio [IRR] 9.3; 95% confidence interval [CI], 7.3-11.8; P < .001) and was markedly lower in those with a suppressed viral load (50 vs 523/100 000; IRR 10.4; 95% CI, 7.6-14.1; P < .001). The latter group still had 4.5-fold higher (95% CI, 3.8-5.3; P < .001) IPD incidence compared to the general population (11.2/100 000). CONCLUSIONS IPD incidence among people with HIV reduced after PCV13 introduction and has remained stable. Adults presenting with IPD should continue to be tested for HIV infection.
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Affiliation(s)
- Peter D Kirwan
- Human Immunodeficiency Virus Section, Public Health England, London, United Kingdom
| | - Zahin Amin-Chowdhury
- Immunisation and Countermeasures Division, Pubic Health England, London, United Kingdom
| | - Sara E Croxford
- Human Immunodeficiency Virus Section, Public Health England, London, United Kingdom
| | - Carmen Sheppard
- Respiratory and Vaccine Preventable Bacterial Reference Unit, Pubic Health England, London, United Kingdom
| | - Norman Fry
- Respiratory and Vaccine Preventable Bacterial Reference Unit, Pubic Health England, London, United Kingdom
| | - Valerie C Delpech
- Human Immunodeficiency Virus Section, Public Health England, London, United Kingdom
| | - Shamez N Ladhani
- Immunisation and Countermeasures Division, Pubic Health England, London, United Kingdom.,Paediatric Infectious Diseases Research Group, St George's University of London, London, United Kingdom
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11
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Gibney KB, MacLachlan J, Coutts R, Higgins N, Strachan J. Incidence of Invasive Pneumococcal Disease Higher Among People Notified With Markers of Hepatitis C Virus Infection: Population-based Surveillance in Victoria, Australia, 2001-2017. Clin Infect Dis 2021; 72:e319-e325. [PMID: 32750118 DOI: 10.1093/cid/ciaa1110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Worse outcomes from invasive pneumococcal disease (IPD) have been reported among those coinfected with hepatitis C. We aimed to establish if IPD notification rates are higher among people notified with markers of hepatitis C virus infection than the general population. METHODS IPD cases notified in Victoria, Australia, from July 2001-December 2017 were linked with hepatitis C cases (diagnosed by serology or PCR testing) notified from January 1991-December 2017. IPD incidence was calculated using population data and the estimated number of Victorians with hepatitis C. RESULTS From July 2001-December 2017, 6407 IPD cases were notified. Hepatitis C infection was notified in 342 (5.3%) of IPD cases overall, and 24.4% among IPD cases aged 45-49 years. Among IPD cases also notified with hepatitis C, 55.3% were infected with 13-valent pneumococcal conjugate vaccine serotypes and 82.8% with 23-valent pneumococcal polysaccharide vaccine serotypes. Compared with IPD cases without hepatitis C, IPD cases also notified with hepatitis C were younger (mean age, 45.7 vs 49.4 years; P = .011) and more often male (65.5% vs 55.5%, P < .001). Annual IPD notification incidence was 6.8/100 000 among people without hepatitis C and 39.4/100 000 among people with hepatitis C (IRR, 5.8; 95% CI, 5.2-6.4; P < .001). CONCLUSIONS IPD notification incidence was 5 times higher among people notified with markers of hepatitis C than the general population. Pneumococcal vaccination should be offered to people with markers of hepatitis C virus infection. To facilitate appropriate treatment, young and middle-aged adults with IPD should be tested for hepatitis C.
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Affiliation(s)
- Katherine B Gibney
- Health Protection Branch, Victorian Department of Health and Human Services, Melbourne, Australia.,The Peter Doherty Institute of Infection and Immunity, University of Melbourne and Royal Melbourne Hospital, Melbourne, Australia
| | - Jennifer MacLachlan
- Victorian Infectious Diseases Reference Laboratory, Royal Melbourne Hospital, The Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Rachel Coutts
- Health Protection Branch, Victorian Department of Health and Human Services, Melbourne, Australia
| | - Nasra Higgins
- Health Protection Branch, Victorian Department of Health and Human Services, Melbourne, Australia
| | - Janet Strachan
- Health Protection Branch, Victorian Department of Health and Human Services, Melbourne, Australia
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12
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Bentley SD, Lo SW. Global genomic pathogen surveillance to inform vaccine strategies: a decade-long expedition in pneumococcal genomics. Genome Med 2021; 13:84. [PMID: 34001237 PMCID: PMC8130287 DOI: 10.1186/s13073-021-00901-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 04/30/2021] [Indexed: 11/10/2022] Open
Abstract
Vaccines are powerful agents in infectious disease prevention but often designed to protect against some strains that are most likely to spread and cause diseases. Most vaccines do not succeed in eradicating the pathogen and thus allow the potential emergence of vaccine evading strains. As with most evolutionary processes, being able to capture all variations across the entire genome gives us the best chance of monitoring and understanding the processes of vaccine evasion. Genomics is being widely adopted as the optimum approach for pathogen surveillance with the potential for early and precise identification of high-risk strains. Given sufficient longitudinal data, genomics also has the potential to forecast the emergence of such strains enabling immediate or pre-emptive intervention. In this review, we consider the strengths and challenges for pathogen genomic surveillance using the experience of the Global Pneumococcal Sequencing (GPS) project as an early example. We highlight the multifaceted nature of genome data and recent advances in genome-based tools to extract useful information relevant to inform vaccine strategies and treatment options. We conclude with future perspectives for genomic pathogen surveillance.
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Affiliation(s)
- Stephen D Bentley
- Parasites and Microbes, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK.
| | - Stephanie W Lo
- Parasites and Microbes, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
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13
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Jha V, Nicholson LK, Gardner EM, Rahkola JT, Pratap H, Scott J, Borgeson M, Jacobelli J, Janoff EN. Impact of HIV-1 Infection and Antigen Class on T Follicular Helper Cell Responses to Pneumococcal Polysaccharide-Protein Conjugate Vaccine-13. THE JOURNAL OF IMMUNOLOGY 2021; 206:2402-2411. [PMID: 33931485 DOI: 10.4049/jimmunol.2001133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/04/2021] [Indexed: 11/19/2022]
Abstract
Pneumococcal infections are common and serious complications of HIV-1 disease. Prevention has been compromised by the limited magnitude and quality of Ab responses to T cell-independent type 2 pneumococcal capsular polysaccharides (PPS). The pneumococcal polysaccharide-protein conjugate vaccine-13 (PCV-13) contains PPS conjugated to the T cell-dependent protein (diphtheria toxoid [DT] [CRM197]). We investigated the differential response to PPS and DT by human Ab-secreting B cells (ASC) after immunization with PCV-13 in newly diagnosed healthy HIV+ and control adults. The numbers of PPS-specific IgG ASC increased significantly and similarly in HIV+ and controls. However, DT-specific IgG ASC increased in controls but not HIV+ subjects. To determine the cellular basis of these disparate responses to DT and PPS, we characterized the frequency and activation of T follicular helper (Tfh) cells, the predominant T cell subset providing B cell help. Expression of inducible T cell costimulator (ICOS), which sustains Tfh function and phenotype, increased significantly among controls, when compared with the HIV+ group. Increases in ICOS+ Tfh correlated with changes in T-dependent, DT-specific IgG ASC in controls but not in HIV+ In contrast, ICOS expression did not correlate with T cell-independent type 2 PPS-specific ASC in either group. Of note, upon optimized ex vivo stimulation, CD4 T cells from HIV+ subjects differentiated into Tfh cells and formed synapses with Raji B cells at frequencies similar to that of controls. In summary, PCV-13-induced increase in ICOS expression on Tfh was associated with responses to DT, which was compromised in recently diagnosed healthy HIV+ adults and can be restored ex vivo by providing effective Tfh-differentiating signals.
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Affiliation(s)
- Vibha Jha
- Mucosal and Vaccine Research Program Colorado, Division of Infectious Diseases, University of Colorado Anschutz Medical Campus, Aurora, CO.,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO
| | - Lindsay K Nicholson
- Mucosal and Vaccine Research Program Colorado, Division of Infectious Diseases, University of Colorado Anschutz Medical Campus, Aurora, CO.,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO
| | | | - Jeremy T Rahkola
- Mucosal and Vaccine Research Program Colorado, Division of Infectious Diseases, University of Colorado Anschutz Medical Campus, Aurora, CO.,Barbara Davis Center, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Harsh Pratap
- Mucosal and Vaccine Research Program Colorado, Division of Infectious Diseases, University of Colorado Anschutz Medical Campus, Aurora, CO.,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO
| | | | - Mandy Borgeson
- Mucosal and Vaccine Research Program Colorado, Division of Infectious Diseases, University of Colorado Anschutz Medical Campus, Aurora, CO.,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO
| | - Jordan Jacobelli
- Barbara Davis Center, University of Colorado Anschutz Medical Campus, Aurora, CO.,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Edward N Janoff
- Mucosal and Vaccine Research Program Colorado, Division of Infectious Diseases, University of Colorado Anschutz Medical Campus, Aurora, CO .,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO.,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO
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14
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Andersen MA, Niemann CU, Rostgaard K, Dalby T, Sørrig R, Weinberger DM, Hjalgrim H, Harboe ZB. Differences and Temporal Changes in Risk of Invasive Pneumococcal Disease in Adults with Hematological Malignancies: Results from a Nationwide 16-Year Cohort Study. Clin Infect Dis 2021; 72:463-471. [PMID: 32463435 DOI: 10.1093/cid/ciaa090] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/06/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Patients with hematological malignancies (HM) are known to carry an increased risk of invasive pneumococcal disease (IPD). However, temporal variations in IPD risks following a cancer diagnosis remain poorly characterized. To inform vaccine guidelines and patient management, we assessed the IPD incidence among patients with HM and other malignancies. METHODS The study population included all individuals aged ≥15 years during 2000-2016 in Denmark. Variations in incidences of IPD over time and between different types of hematological malignancies and diagnoses were assessed by Poisson regression. RESULTS During 85 002 224 person-years of observation, 13 332 episodes of a first IPD were observed, of which 765 (5.7%) occurred among individuals with HM. Among HM patients, the IPD incidence rate decreased continuously during the study period (rate ratio per year, 0.91; 95% confidence interval, .90-.92). The risk of IPD in patients with HM was up to 39 times higher when compared to the background population and was highest for multiple myeloma, acute lymphoblastic leukemia, and chronic lymphocytic leukemia. Unlike other malignancies, the increased IPD risk did not wane with the time since HM diagnosis. We found a vaccination uptake of only ≤2% in patients with HM and ≤1% for those with other types of malignancies. CONCLUSIONS Adults with HM in general and patients with lymphoid malignancies in particular have an increased risk for IPD, compared with patients with other types of cancer and with individuals free of cancer. The pneumococcal vaccination uptake is extremely low in this at risk-population. Efforts to prevent IPD in HM patients are continuously warranted.
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Affiliation(s)
- Michael Asger Andersen
- Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Carsten Utoft Niemann
- Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Klaus Rostgaard
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Tine Dalby
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Rasmus Sørrig
- Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Daniel M Weinberger
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, USA
| | - Henrik Hjalgrim
- Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Zitta Barrella Harboe
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark.,Department of Pulmonary and Infectious Diseases, Hospital of Nordsjælland, University of Copenhagen, Copenhagen, Denmark
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15
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Van de Wijer L, van der Heijden WA, Ter Horst R, Jaeger M, Trypsteen W, Rutsaert S, van Cranenbroek B, van Rijssen E, Joosten I, Joosten L, Vandekerckhove L, Schoofs T, van Lunzen J, Netea MG, Koenen HJPM, van der Ven AJAM, de Mast Q. The Architecture of Circulating Immune Cells Is Dysregulated in People Living With HIV on Long Term Antiretroviral Treatment and Relates With Markers of the HIV-1 Reservoir, Cytomegalovirus, and Microbial Translocation. Front Immunol 2021; 12:661990. [PMID: 33953724 PMCID: PMC8091964 DOI: 10.3389/fimmu.2021.661990] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/29/2021] [Indexed: 12/26/2022] Open
Abstract
Long-term changes in the immune system of successfully treated people living with HIV (PLHIV) remain incompletely understood. In this study, we assessed 108 white blood cell (WBC) populations in a cohort of 211 PLHIV on stable antiretroviral therapy and in 56 HIV-uninfected controls using flow cytometry. We show that marked differences exist in T cell maturation and differentiation between PLHIV and HIV-uninfected controls: PLHIV had reduced percentages of CD4+ T cells and naïve T cells and increased percentages of CD8+ T cells, effector T cells, and T helper 17 (Th17) cells, together with increased Th17/regulatory T cell (Treg) ratios. PLHIV also exhibited altered B cell maturation with reduced percentages of memory B cells and increased numbers of plasmablasts. Determinants of the T and B cell composition in PLHIV included host factors (age, sex, and smoking), markers of the HIV reservoir, and CMV serostatus. Moreover, higher circulating Th17 percentages were associated with higher plasma concentrations of interleukin (IL) 6, soluble CD14, the gut homing chemokine CCL20, and intestinal fatty acid binding protein (IFABP). The changes in circulating lymphocytes translated into functional changes with reduced interferon (IFN)- γ responses of peripheral blood mononuclear cells to stimulation with Candida albicans and Mycobacterium tuberculosis. In conclusion, this comprehensive analysis confirms the importance of persistent abnormalities in the number and function of circulating immune cells in PLHIV on stable treatment.
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Affiliation(s)
- Lisa Van de Wijer
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Wouter A van der Heijden
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Rob Ter Horst
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Martin Jaeger
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Wim Trypsteen
- HIV Cure Research Center, Department of Internal Medicine and Paediatrics, Faculty of Medicine and Health Sciences, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - Sofie Rutsaert
- HIV Cure Research Center, Department of Internal Medicine and Paediatrics, Faculty of Medicine and Health Sciences, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - Bram van Cranenbroek
- Laboratory for Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Esther van Rijssen
- Laboratory for Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Irma Joosten
- Laboratory for Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Leo Joosten
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Linos Vandekerckhove
- HIV Cure Research Center, Department of Internal Medicine and Paediatrics, Faculty of Medicine and Health Sciences, Ghent University and Ghent University Hospital, Ghent, Belgium
| | | | | | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Department for Genomics & Immunoregulation, Life and Medical Sciences 12 Institute (LIMES), University of Bonn, Bonn, Germany
| | - Hans J P M Koenen
- Laboratory for Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - André J A M van der Ven
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Quirijn de Mast
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
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16
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Larsen L, Nguyen MTT, Johansen IS. The coverage of influenza and pneumococcal vaccinations among people living with HIV in Denmark: A single-center cross-sectional survey. Hum Vaccin Immunother 2021; 17:2700-2705. [PMID: 33760692 DOI: 10.1080/21645515.2021.1894895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Annual influenza vaccination is recommended for all people living with HIV (PLWH), and so is pneumococcal vaccination at least once. This is due to higher incidence rates for both infections among PLWH, compared to HIV negative, even in the later highly active antiretroviral therapy era. To clarify the uptake of and attitude toward both vaccines among PLWH in Denmark, a survey on self-reported vaccine uptake was performed during 2017. Analyses identifying factors associated with vaccine uptake in the latest season for 203 participants were performed. Both influenza and pneumococcal vaccination uptake are low among PLWH in Denmark, 31.0% and 4.4%, respectively. Previous vaccination against influenza had the highest impact on influenza vaccine uptake, and lack of immunization guidance lowers the likelihood. Interventions to improve vaccination coverage are needed, such as increased awareness about guidelines and physician education.
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Affiliation(s)
- Lykke Larsen
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark.,Research Unit for Infectious Diseases, Odense University Hospital, University of Southern Denmark, Denmark.,OPEN, Open Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
| | | | - Isik Somuncu Johansen
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark.,Research Unit for Infectious Diseases, Odense University Hospital, University of Southern Denmark, Denmark
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17
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Garcia Garrido HM, Mak AMR, Wit FWNM, Wong GWM, Knol MJ, Vollaard A, Tanck MWT, Van Der Ende A, Grobusch MP, Goorhuis A. Incidence and Risk Factors for Invasive Pneumococcal Disease and Community-acquired Pneumonia in Human Immunodeficiency Virus-Infected Individuals in a High-income Setting. Clin Infect Dis 2021; 71:41-50. [PMID: 31634398 PMCID: PMC7312213 DOI: 10.1093/cid/ciz728] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 07/31/2019] [Indexed: 12/16/2022] Open
Abstract
Background Although people living with human immunodeficiency virus (PLWH) are at increased risk of invasive pneumococcal disease (IPD) and community-acquired pneumonia (CAP), it is unclear whether this remains the case in the setting of early initiation of combination antiretroviral therapy (cART), at high CD4 cell counts. This is important, as pneumococcal vaccination coverage in PLWH is low in Europe and the United States, despite longstanding international recommendations. Methods We identified all CAP and IPD cases between 2008 and 2017 in a cohort of PLWH in a Dutch HIV referral center. We calculated incidence rates stratified by CD4 count and cART status and conducted a case-control study to identify risk factors for CAP in PLWH receiving cART. Results Incidence rates of IPD and CAP in PLWH were 111 and 1529 per 100 000 patient-years of follow-up (PYFU). Although IPD and CAP occurred more frequently in patients with CD4 counts <500 cells/μL (incidence rate ratio [IRR], 6.1 [95% confidence interval, 2.2–17] and IRR, 2.4 [95% confidence interval, 1.9–3.0]), the incidence rate in patients with CD4 counts >500 cells/μL remained higher compared with the general population (946 vs 188 per 100 000 PYFU). All IPD isolates were vaccine serotypes. Risk factors for CAP were older age, CD4 counts <500 cells/μL, smoking, drug use, and chronic obstructive pulmonary disease. Conclusions The incidence of IPD and CAP among PLWH remains higher compared with the general population, even in those who are virally suppressed and have high CD4 counts. With all serotyped IPD isolates covered by pneumococcal vaccines, our study provides additional argumentation against the poor current adherence to international recommendations to vaccinate PLWH.
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Affiliation(s)
- Hannah M Garcia Garrido
- Center for Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Amsterdam, The Netherlands
| | - Anne M R Mak
- Center for Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Amsterdam, The Netherlands
| | - Ferdinand W N M Wit
- Dutch HIV Monitoring Foundation (Stichting HIV Monitoring), Amsterdam University Medical Centers (UMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Gino W M Wong
- Center for Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Amsterdam, The Netherlands
| | - Mirjam J Knol
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Albert Vollaard
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Michael W T Tanck
- Departments of Clinical Epidemiology, Biostatistics and Bioinformatics, and , Amsterdam, The Netherlands
| | - Arie Van Der Ende
- Medical Microbiology, Amsterdam UMC, University of Amsterdam, and , Amsterdam, The Netherlands.,Netherlands Reference Laboratory for Bacterial Meningitis, Amsterdam, The Netherlands
| | - Martin P Grobusch
- Center for Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Amsterdam, The Netherlands
| | - Abraham Goorhuis
- Center for Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Amsterdam, The Netherlands
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18
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Vivancos-Gallego MJ, Muriel A, Serrano-Villar S, Moreno-Zamora A, Pérez-Elías MJ, Quereda C, Casado JL, Sánchez-Conde M, Del Campo S, Dronda F, Sánchez-Díaz AM, Valencia-Martín JL, Moreno S. Pneumococcal vaccination in adult people living with HIV on suppressive antiretroviral therapy: a case-control study. Int J STD AIDS 2019; 31:174-182. [PMID: 31865862 DOI: 10.1177/0956462419882128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
There is little information on the effectiveness of the pneumococcal vaccines (PVs), especially for the pneumococcal conjugate vaccines (PCVs), in HIV-infected patients in the modern antiretroviral era. This is a case–control study where cases were people living with HIV (PLWH) with confirmed pneumococcal infection (CPI) and controls were PLWH without CPI matched with cases by gender and year of HIV diagnosis. The selection process was blinded to the study factor (vaccination). Sample size estimation yielded 61 cases and 183 controls. We analyzed the effect of PV on CPI using Cox proportional-hazards regression model with time-dependent covariates. We included 256 subjects: 64 cases, and 192 controls. PVs had been administered to 115 (45%) patients. Only the modified Charlson Comorbidity Index (HR 1.16, 95%CI 1.06–1.27, P = 0.001) and the CD4 nadir (HR 0.99, 95% CI 0.98–0.99, P = 0.001) were independently associated with CPI. Receipt of PV was not associated with CPI after adjusting in the multivariate model with time protection as a dependent covariate (HR 0.65, 95% CI 0.35–1.32 P = 0.250). We also investigated the influence of different immunization schedules. In an adjusted model, we found no evidence of protection against CPI, including double immunization schedules (HR 0.42 95%CI 0.15–1.19 P = 0.102). In this case–control study, we could not show an association between pneumococcal vaccination and confirmed pneumococcal infection, although a protective effect of particular schedules of immunization cannot be ruled out.
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Affiliation(s)
- M J Vivancos-Gallego
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - Alfonso Muriel
- Clinical Biostatistics Unit, IRYCIS, University Hospital Ramón y Cajal, Madrid, Spain
| | - Sergio Serrano-Villar
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - Ana Moreno-Zamora
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - M J Pérez-Elías
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - Carmen Quereda
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - J L Casado
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - Matilde Sánchez-Conde
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - Santos Del Campo
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - Fernando Dronda
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain
| | - Ana M Sánchez-Díaz
- Microbiology Department, IRYCIS, University Hospital Ramón y Cajal, Madrid, Spain
| | | | - Santiago Moreno
- Department of Infectious Diseases, University Hospital Ramon y Cajal and Ramón y Cajal Health Research Institute (IRYCIS), Madrid, Spain.,Department of Medicine, University of Alcal´ de Henares, Madrid, Spain
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19
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Bos JC, van Hest RM, Mistício MC, Nunguiane G, Lang CN, Beirão JC, Mathôt RAA, Prins JM. Pharmacokinetics and Pharmacodynamic Target Attainment of Benzylpenicillin in an Adult Severely Ill Sub-Saharan African Patient Population. Clin Infect Dis 2019; 66:1261-1269. [PMID: 29112711 DOI: 10.1093/cid/cix961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/01/2017] [Indexed: 12/14/2022] Open
Abstract
Background In intensive care (ICU) patients, systemic exposure of β-lactam antibiotics can be altered, and positive clinical outcome is associated with increasing fT > MIC ratios. In sub-Saharan African hospitals, benzylpenicillin (PEN) is frequently used for the empiric treatment of severe pneumococcal infections. Pharmacokinetic data for non-ICU hospitalized populations are lacking. Methods We performed a population pharmacokinetic (PPK) study in an adult Mozambican hospital population treated intravenously with PEN from October 2014 through November 2015. Four blood samples/patient were collected for total PEN (PENt) and unbound PEN (PENu) concentration measurement. We developed a PPK model through nonlinear mixed-effects analysis and performed simulations for different patient variable, dosing, and pharmacodynamic target scenarios. Results One hundred twelve participants yielded 387 PENt and 53 PENu concentrations. The median body mass index was 18.3 (range, 10.5-31.3) kg/m2 and the median albumin concentration and creatinine clearance (CrCl) were 29 (range, 12-44) g/L and 80 (range, 3-195) mL/minute, respectively. In a 1-compartment model, CrCl was positively correlated with PENt clearance. For infections with a microorganism with a minimum inhibitory concentration (MIC) of 1 mg/L, simulations demonstrated that with 3 million IU (1.8 g) every 6 hours, 74.1% would have a PENu concentration greater than the MIC during half of the dosing interval (fT > MIC = 50%), whereas this was 24.8% for the fT > MIC = 100% target. For pathogens with an MIC of 0.06 mg/L, these percentages were 98.2% and 72.3%, respectively. Conclusions Severely ill adult sub-Saharan African patients may be at high risk for underexposure to PENu during routine intermittent bolus dosing, especially when their renal function is intact and when infected with pathogens with intermediate susceptibility.
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Affiliation(s)
- Jeannet C Bos
- Department of Internal Medicine, Division of Infectious Diseases, Academic Medical Center, University of Amsterdam, The Netherlands
| | - Reinier M van Hest
- Department of Hospital Pharmacy, Division of Clinical Pharmacology, Academic Medical Center, University of Amsterdam, The Netherlands
| | - Mabor C Mistício
- Research Center for Infectious Diseases of the Faculty of Health Sciences, Catholic University of Mozambique, Beira
| | - Ginto Nunguiane
- Research Center for Infectious Diseases of the Faculty of Health Sciences, Catholic University of Mozambique, Beira
| | - Cláudia N Lang
- Research Center for Infectious Diseases of the Faculty of Health Sciences, Catholic University of Mozambique, Beira
| | - José C Beirão
- Research Center for Infectious Diseases of the Faculty of Health Sciences, Catholic University of Mozambique, Beira
| | - Ron A A Mathôt
- Department of Hospital Pharmacy, Division of Clinical Pharmacology, Academic Medical Center, University of Amsterdam, The Netherlands
| | - Jan M Prins
- Department of Internal Medicine, Division of Infectious Diseases, Academic Medical Center, University of Amsterdam, The Netherlands
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20
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Sadlier C, O'Connell S, Kelleher M, Bergin C. Incidence and risk factors for invasive pneumococcal disease in HIV-positive individuals in the era of highly active antiretroviral therapy. Int J STD AIDS 2019; 30:472-478. [PMID: 30999829 DOI: 10.1177/0956462418817034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Invasive pneumococcal diseases (IPDs) remain a significant cause of morbidity and mortality in human immunodeficiency virus (HIV)-positive individuals despite the widespread use of highly active antiretroviral therapy (HAART) and availability of pneumococcal vaccines. The aim of this study was to measure temporal trends in incidence and risk factors for IPD (defined as culture of Streptococcus pneumoniae from blood, cerebrospinal fluid or both) in a cohort of HIV-positive patients attending an ambulatory HIV care centre in Dublin, Ireland over a 10-year period 2006-2015. Incidence of IPD was determined as events per 100,000 person-years' follow-up. Poisson regression was used to assess linear trend in incidence over time. A nested case-control study (four controls per case) was undertaken to assess risk factors for IPD. Forty-seven episodes of IPD were identified in 42 HIV-positive individuals (median [IQR] age 38 years [33-43], 69% male, 86% injecting drug users (IDUs), median CD4 T-cell count 213 cells/mm3) over 16,008 person-years' follow-up (overall incidence rate 293/100,000 person-years). Three patients had two episodes and one patient had three episodes of IPD during the study period. The overall case fatality rate was 15% (95% confidence interval [CI] 4-24%). The incidence of IPD per 100,000 person-years decreased from 728 (95% CI, 455-1002), to 242 (95% CI, 120-365) to 82 (95% CI, 40-154) in calendar periods 2006-2008, 2009-2012 and 2013-2015, respectively (p < 0.01 for linear trend). Older age (p = 0.02), male gender (p = 0.05), detectable HIV viral load (p < 0.01) and non-receipt of pneumococcal vaccine (p = 0.03) were associated with IPD while IDU as risk of acquisition of HIV was of borderline significance (p = 0.06). HIV-positive individuals remain at greater risk of IPD compared to the general population. Pneumococcal vaccine should be seen as a priority to ensure optimal protection for HIV-positive patients.
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Affiliation(s)
- C Sadlier
- 1 Department of Genitourinary Medicine and Infectious Diseases (GUIDE), St James's Hospital, Dublin, Ireland.,2 Department of Clinical Medicine, Trinity College, Dublin, Ireland.,3 Department of Infectious Diseases, Cork University Hospital, Cork, Ireland
| | - Sarah O'Connell
- 4 Department of Infectious Diseases, University Hospital Limerick, Limerick, Ireland
| | - M Kelleher
- 5 Department of Clinical Microbiology, St James's Hospital, Dublin
| | - C Bergin
- 1 Department of Genitourinary Medicine and Infectious Diseases (GUIDE), St James's Hospital, Dublin, Ireland.,2 Department of Clinical Medicine, Trinity College, Dublin, Ireland
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21
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Lopez Luis BA, Leon-Tavares DM. Purulent Pneumococcal Pericarditis: An Uncommon Presentation in the Vaccination Era. Am J Med 2018; 131:e331-e332. [PMID: 29653087 DOI: 10.1016/j.amjmed.2018.03.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 03/21/2018] [Accepted: 03/22/2018] [Indexed: 11/26/2022]
Affiliation(s)
- Bruno Ali Lopez Luis
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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22
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Su JR, Ng C, Lewis PW, Cano MV. Adverse events after vaccination among HIV-positive persons, 1990-2016. PLoS One 2018; 13:e0199229. [PMID: 29920551 PMCID: PMC6007919 DOI: 10.1371/journal.pone.0199229] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 06/04/2018] [Indexed: 01/04/2023] Open
Abstract
Human immunodeficiency virus (HIV) causes immune dysregulation, potentially affecting response to vaccines in infected persons. We investigated if unexpected adverse events (AEs) or unusual patterns of AEs after vaccination were reported among HIV-positive persons. We searched for domestic reports among HIV-positive persons to the Vaccine Adverse Event Reporting System (VAERS) during 1990–2016. We analyzed reports by age group (<19 and ≥19 years), sex, serious or non-serious status, live vaccine type (live versus inactivated), AEs reported, and CD4 counts. Of 532,235 reports received, 353 (0.07%) described HIV-positive persons, of whom 67% were aged ≥19 years, and 57% were male; most reports (75%) were non-serious. The most commonly reported inactivated vaccines were pneumococcal polysaccharide (27%) and inactivated influenza (27%); the mostly reported common live virus vaccines were combination measles, mumps, and rubella (8%) and varicella (6%). Injection site reactions were commonly reported (39%). Of 67 reports with CD4 counts available, 41 (61%) described persons immunocompromised at time of vaccination (CD4 count <500 cells/mm3), and differed from overall reports only in that varicella was the most common live virus vaccine (4 reports). Of 22 reports describing failure to protect against infection, 6 described persons immunocompromised at time of vaccination, among whom varicella vaccine was most common (3 reports). Of 66 reports describing live virus vaccines, 7 described persons with disseminated infection: 6 had disseminated varicella, 3 of whom had vaccine strain varicella-zoster virus. Of 18 reported deaths, 7 resulted from disseminated infection: 6 were among immunocompromised persons, 1 of whom had vaccine strain varicella-zoster virus. We identified no unexpected or unusual patterns of AEs among HIV-positive persons. These data reinforce current vaccine recommendations for this risk group. However, healthcare providers should know their HIV-positive patients’ immune status because immunocompromising conditions can potentially increase the risk of rare, but severe, AEs following vaccination with live virus vaccines.
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Affiliation(s)
- John R. Su
- Immunization Safety Office, Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
- * E-mail:
| | - Carmen Ng
- Immunization Safety Office, Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Paige W. Lewis
- Immunization Safety Office, Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Maria V. Cano
- Immunization Safety Office, Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
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23
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van Aalst M, Lötsch F, Spijker R, van der Meer JTM, Langendam MW, Goorhuis A, Grobusch MP, de Bree GJ. Incidence of invasive pneumococcal disease in immunocompromised patients: A systematic review and meta-analysis. Travel Med Infect Dis 2018; 24:89-100. [PMID: 29860151 DOI: 10.1016/j.tmaid.2018.05.016] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 05/10/2018] [Accepted: 05/29/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Invasive pneumococcal disease (IPD) is associated with high morbidity and mortality, with immunocompromised patients (ICPs) at particular risk. Therefore, guidelines recommend pneumococcal vaccination for these patients. However, guidelines are scarcely underpinned with references to incidence studies of IPD in this population. This, potentially results in unawareness of the importance of vaccination and low vaccination rates. The objective of this systematic review and meta-analysis was to assess the incidence of IPD in ICPs. METHODS We systematically searched PubMed and Embase to identify studies in English published before December 6th, 2017 that included terms related to 'incidence', 'rate', 'pneumococcal', 'pneumoniae', 'meningitis', 'septicemia', or 'bacteremia'. We focused on patients with HIV, transplantation and chronic inflammatory diseases. RESULTS We included 45 studies in the systematic review reporting an incidence or rate of IPD, defined as isolation of Streptococcus pneumoniae from a normally sterile site. Random effects meta-analysis of 38 studies showed a pooled IPD incidence of 331/100,000 person years in patients with HIV in the late-antiretroviral treatment era in non-African countries, and 318/100,000 in African countries; 696 and 812/100,000 in patients who underwent an autologous or allogeneic stem cell transplantation, respectively; 465/100,000 in patients with a solid organ transplantation; and 65/100,000 in patients with chronic inflammatory diseases. In healthy control cohorts, the pooled incidence was 10/100,000. DISCUSSION ICPs are at increased risk of contracting IPD, especially those with HIV, and those who underwent transplantation. Based on our findings, we recommend pneumococcal vaccination in immunocompromised patients. PROSPERO REGISTRATION ID: CRD42016048438.
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Affiliation(s)
- Mariëlle van Aalst
- Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1100 AZ, Amsterdam, The Netherlands
| | - Felix Lötsch
- Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1100 AZ, Amsterdam, The Netherlands; Clinical Division of Infection and Tropical Medicine, Medical University of Vienna, Splitalgasse 23, 1090, Vienna, Austria
| | - René Spijker
- Medical Library, Academic Medical Center, Amsterdam, Meibergdreef 9, 1100 AZ, Amsterdam, The Netherlands; Cochrane Netherlands, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jan T M van der Meer
- Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1100 AZ, Amsterdam, The Netherlands
| | - Miranda W Langendam
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, Amsterdam, Meibergdreef 9, 1100 AZ, Amsterdam, The Netherlands
| | - Abraham Goorhuis
- Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1100 AZ, Amsterdam, The Netherlands
| | - Martin P Grobusch
- Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1100 AZ, Amsterdam, The Netherlands; Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
| | - Godelieve J de Bree
- Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1100 AZ, Amsterdam, The Netherlands; Amsterdam Institute for Global Health and Development, Paasheuvelweg 25, 1105BP, Amsterdam, The Netherlands.
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Pathogenesis of infections in HIV-infected individuals: insights from primary immunodeficiencies. Curr Opin Immunol 2017; 48:122-133. [PMID: 28992464 PMCID: PMC5682227 DOI: 10.1016/j.coi.2017.09.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/14/2017] [Accepted: 09/17/2017] [Indexed: 12/12/2022]
Abstract
Following infection with almost any given microorganism other than an emerging pathogen, only a minority of individuals develop life-threatening clinical disease, implying that these individuals have some form of immunodeficiency. A growing number of inherited and acquired immunodeficiencies have been deciphered over the last 50 years. HIV infection is probably the best-known acquired immunodeficiency. It emerged about 40 years ago and precipitates various severe infections, the occurrence of which is associated with a fall in circulating CD4+ T cells. However, despite the strength of this correlation, infection rates differ between patients with similar levels and durations of CD4+ T lymphopenia in the presence or absence of antiretroviral treatment. Moreover, a few infections seem to be less dependent on total CD4+ T-cell levels. The fine detail of the mechanisms underlying these infections is unknown. We discuss here how studies of the human genetics and immunology of some of these infections in patients with primary immunodeficiencies (PIDs) have provided unique insights into their molecular and cellular basis. Defects of specific CD4+ Th-cell subsets account for some of these infections, as best exemplified by Th1* for mycobacteriosis and Th17 for candidiasis. PIDs are individually rare, but collectively much more common than initially thought, with new disorders being discovered at an ever-increasing pace and a global prevalence worldwide approaching that of HIV infection. Studies of known and new PIDs should make it possible to dissect the pathogenesis of most human infections at an unprecedented level of molecular and cellular precision. The predictive, preventive, and therapeutic implications of studies of immunity to infection in PIDs may extend to HIV-infected patients and patients with infectious diseases in other settings.
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Abstract
In the combined antiretroviral therapy era, HIV-infected patients remain a vulnerable population for the onset of bloodstream infections (BSI). Worldwide, nontyphoid salmonellae, Streptococcus pneumoniae, Escherichia coli, Staphylococcus aureus and coagulase negative staphylococci are the most important pathogens. Intravenous catheter associated infection, skin-soft tissue infection and endocarditis are associated with Gram-positive bacteremia. Among the Gram-negative, nontyphoidal Salmonella have been previously correlated to sepsis. Other causes of BSI in HIV-infected patients are mycobacteria and fungi. Mycobacteria constitute a major cause of BSI in limited resource countries. Fungal BSI are not frequent and among them Cryptococcus neoformans is the most common life-threatening infection. The degree of immunosuppression remains the key prognostic factor leading to the development of BSI.
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Affiliation(s)
- Lucia Taramasso
- a Infectious Diseases Unit, IRCCS AOU San Martino-IST, University of Genoa , Genoa , Italy
| | - Paola Tatarelli
- a Infectious Diseases Unit, IRCCS AOU San Martino-IST, University of Genoa , Genoa , Italy
| | - Antonio Di Biagio
- a Infectious Diseases Unit, IRCCS AOU San Martino-IST, University of Genoa , Genoa , Italy
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26
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Production of IgG antibodies to pneumococcal polysaccharides is associated with expansion of ICOS+ circulating memory T follicular-helper cells which is impaired by HIV infection. PLoS One 2017; 12:e0176641. [PMID: 28463977 PMCID: PMC5413043 DOI: 10.1371/journal.pone.0176641] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 04/13/2017] [Indexed: 11/26/2022] Open
Abstract
Dysfunction of T follicular-helper (TFH) cells is a possible cause of impaired germinal centre (GC) and IgG antibody responses in individuals with human immunodeficiency virus-1 (HIV-1) infection and might contribute to decreased magnitude and isotype diversification of IgG antibodies to pneumococcal polysaccharides (PcPs). We examined the production of IgG1 and IgG2 antibodies to PcPs 4, 6B, 9V and 14 by enumerating antibody secreting cells (ASCs) at day (D) 7 and determining fold-increase in serum antibody levels at D28 after vaccination with unconjugated PcPs in HIV seronegative subjects (n = 20) and in HIV patients who were receiving antiretroviral therapy (ART) (n = 28) or who were ART-naive (n = 11) and determined their association with ICOS+ and ICOS- circulating memory TFH (cmTFH) cells (CD4+CD45RA-CD27+CXCR5+PD-1+) and short lived plasmablasts (SPBs) at D7, and with PcP-specific and total IgM+ and IgG+ memory B cells at D0. In HIV seronegative subjects, production of IgG1+ and IgG2+ ASCs was consistently associated with the frequency of ICOS+ cmTFH cells but not ICOS- cmTFH cells or memory B cells. In contrast, post-vaccination ASCs in HIV patients, regardless of ART status, were lower than in HIV seronegative subjects and not associated with ICOS+ cmTFH cells, the expansion of which was absent (ART-naive patients) or much lower than in HIV seronegative subjects (ART-treated patients). Production of SPBs was also lower in ART-naive patients. Fold-increase in IgG2 antibodies at D28 also correlated with ICOS+ cmTFH cells at D7 in HIV seronegative subjects but not in HIV patients. These novel findings provide evidence that ICOS+ cmTFH cells contribute to the regulation of PcP-specific IgG antibody responses, including isotype diversification, and that TFH cell dysfunction may be a cause of impaired PcP-specific IgG antibody responses and increased susceptibility to pneumococcal disease in HIV patients.
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27
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Abstract
BACKGROUND Bacterial meningitis is a significant burden of disease and mortality in all age groups worldwide despite the development of effective conjugated vaccines. The pathogenesis of bacterial meningitis is based on complex and incompletely understood host-pathogen interactions. Some of these are pathogen-specific, while some are shared between different bacteria. METHODS We searched the database PubMed to identify host risk factors for bacterial meningitis caused by the pathogens Streptococcus pneumoniae, Neisseria meningitidis and Haemophilus influenzae type b, because they are three most common causative bacteria beyond the neonatal period. RESULTS We describe a number of risk factors; including socioeconomic factors, age, genetic variation of the host and underlying medical conditions associated with increased susceptibility to invasive bacterial infections in both children and adults. CONCLUSIONS As conjugated vaccines are available for these infections, it is of utmost importance to identify high risk patients to be able to prevent invasive disease.
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Affiliation(s)
- Lene Fogt Lundbo
- a Department of Infectious Diseases , Copenhagen University Hospital , Hvidovre , Denmark.,b Clinical Research Centre , Copenhagen University Hospital , Hvidovre , Denmark.,c Faculty of Health and Medical Sciences , University of Copenhagen , København , Denmark
| | - Thomas Benfield
- a Department of Infectious Diseases , Copenhagen University Hospital , Hvidovre , Denmark.,b Clinical Research Centre , Copenhagen University Hospital , Hvidovre , Denmark.,c Faculty of Health and Medical Sciences , University of Copenhagen , København , Denmark
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Frésard A, Gagneux-Brunon A, Lucht F, Botelho-Nevers E, Launay O. Immunization of HIV-infected adult patients - French recommendations. Hum Vaccin Immunother 2016; 12:2729-2741. [PMID: 27409293 PMCID: PMC5137523 DOI: 10.1080/21645515.2016.1207013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/25/2016] [Accepted: 06/24/2016] [Indexed: 02/06/2023] Open
Abstract
Human immunodeficiency virus (HIV)-infected patients remain at increased risk of infection including vaccine-preventable diseases. Vaccines are therefore critical components in the protection of HIV-infected patients from an increasing number of preventable diseases. However, missed opportunities for vaccination among HIV-infected patients persist and vaccine coverage in this population could be improved. This article presents the French recommendations regarding immunization of HIV-infected adults in the light of the evidence-based literature on the benefits and the potential risks of vaccines among this vulnerable population.
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Affiliation(s)
- Anne Frésard
- Department of Infectious Diseases, CHU Saint-Etienne, Saint-Etienne, France
- Inserm, CIC 1408, St-Etienne, France
| | - Amandine Gagneux-Brunon
- Department of Infectious Diseases, CHU Saint-Etienne, Saint-Etienne, France
- Inserm, CIC 1408, St-Etienne, France
| | - Frédéric Lucht
- Department of Infectious Diseases, CHU Saint-Etienne, Saint-Etienne, France
- Inserm, CIC 1408, St-Etienne, France
- Inserm, F-CRIN, Innovative Clinical Research Network in Vaccinology (I-REIVAC), Paris, France
| | - Elisabeth Botelho-Nevers
- Department of Infectious Diseases, CHU Saint-Etienne, Saint-Etienne, France
- Inserm, CIC 1408, St-Etienne, France
- Inserm, F-CRIN, Innovative Clinical Research Network in Vaccinology (I-REIVAC), Paris, France
| | - Odile Launay
- Inserm, F-CRIN, Innovative Clinical Research Network in Vaccinology (I-REIVAC), Paris, France
- Inserm, CIC 1417, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Assistance Publique-Hôpitaux de Paris, Cochin Hospital, Department of Infectious Diseases, CIC Cochin Pasteur, Paris, France
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Lesourd A, Leporrier J, Delbos V, Unal G, Honoré P, Etienne M, Bouchaud O, Caron F. Antiretroviral Therapy as Prevention of … Pneumococcal Infections? Open Forum Infect Dis 2016; 3:ofw228. [PMID: 28018929 PMCID: PMC5170497 DOI: 10.1093/ofid/ofw228] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 10/21/2016] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Despite antiretroviral therapy, it is generally believed that the risk for pneumococcal infections (PnIs) is high among patients infected with human immunodeficiency virus (HIV). However, most studies in this field have been conducted before 2010, and the proportion of virologically suppressed patients has drastically increased in these latter years thanks to larger indications and more effective antiretroviral regimens. This study aimed to re-evaluate the current risk of PnI among adult patients infected with HIV. METHODS The incidence of PnI was evaluated between 1996 and 2014 in 2 French regional hospitals. The 80 most recent cases of PnI (2000-2014) were retrospectively compared with 160 controls (HIV patients without PnI) to analyze the residual risk factors of PnI. RESULTS Among a mean annual follow-up cohort of 1616 patients, 116 PnIs were observed over 18 years. The risk factors of PnI among patients infected with HIV were an uncontrolled HIV infection or "classic" risk factors of PnI shared by the general population such as addiction, renal or respiratory insufficiency, or hepatitis B or C coinfection. Pneumococcal vaccination coverage was low and poorly targeted, because only 5% of the cases had been previously vaccinated. The incidence of invasive PnIs among HIV patients with a nonvirologically suppressed infection or comorbidities was 12 times higher than that reported in the general population at the country level (107 vs 9/100000 patients), whereas the incidence among virologically suppressed HIV patients without comorbidities was lower (7.6/100000 patients). CONCLUSIONS Human immunodeficiency virus infection no longer per se seems to be a significant risk factor for PnI, suggesting a step-down from a systematic to an "at-risk patient" targeted pneumococcal vaccination strategy.
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Affiliation(s)
- Anaïs Lesourd
- Centre Hospitalo-Universitaire Charles Nicolle, Service de Maladies Infectieuses et Tropicales , Rouen, France
| | - Jérémie Leporrier
- Centre Hospitalo-Universitaire Charles Nicolle, Service de Maladies Infectieuses et Tropicales , Rouen, France
| | - Valérie Delbos
- Centre Hospitalo-Universitaire Charles Nicolle, Service de Maladies Infectieuses et Tropicales, Rouen, France;; Groupe de Recherche sur l'Adaptation Microbienne (2.0-EA 2656, Institut de Recherche et d'Innovation Biomédicale), Normandie Université, Rouen, France
| | - Guillemette Unal
- Centre Hospitalo-Universitaire Charles Nicolle, Service de Maladies Infectieuses et Tropicales, Rouen, France;; Groupe de Recherche sur l'Adaptation Microbienne (2.0-EA 2656, Institut de Recherche et d'Innovation Biomédicale), Normandie Université, Rouen, France
| | - Patricia Honoré
- Centre Hospitalo-Universitaire Avicenne, Service de Maladies Infectieuses et Tropicales , Bobigny, France
| | - Manuel Etienne
- Centre Hospitalo-Universitaire Charles Nicolle, Service de Maladies Infectieuses et Tropicales, Rouen, France;; Groupe de Recherche sur l'Adaptation Microbienne (2.0-EA 2656, Institut de Recherche et d'Innovation Biomédicale), Normandie Université, Rouen, France
| | - Olivier Bouchaud
- Centre Hospitalo-Universitaire Avicenne, Service de Maladies Infectieuses et Tropicales , Bobigny, France
| | - François Caron
- Centre Hospitalo-Universitaire Charles Nicolle, Service de Maladies Infectieuses et Tropicales, Rouen, France;; Groupe de Recherche sur l'Adaptation Microbienne (2.0-EA 2656, Institut de Recherche et d'Innovation Biomédicale), Normandie Université, Rouen, France
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Marcus JL, Baxter R, Leyden WA, Muthulingam D, Yee A, Horberg MA, Klein DB, Towner WJ, Chao CR, Quesenberry CP, Silverberg MJ. Invasive Pneumococcal Disease Among HIV-Infected and HIV-Uninfected Adults in a Large Integrated Healthcare System. AIDS Patient Care STDS 2016; 30:463-470. [PMID: 27749111 DOI: 10.1089/apc.2016.0165] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
It is unclear whether HIV-infected individuals remain at higher risk of invasive pneumococcal disease (IPD) compared with HIV-uninfected individuals. We conducted a cohort study of HIV-infected and demographically matched HIV-uninfected adults within Kaiser Permanente Northern California during the period 1996-2011. We used Poisson models to obtain rate ratios (RRs) for incident IPD associated with HIV infection and other risk factors. Among 13,079 HIV-infected and 137,643 HIV-uninfected adults, the IPD rate per 100,000 person-years was 160 (n = 109 events) for HIV-infected and 8 (n = 75 events) for HIV-uninfected subjects, with an adjusted RR of 13.0 [95% confidence interval (CI): 9.1-18.7]. For HIV-infected individuals, IPD incidence per 100,000 person-years decreased by 71% during study follow-up, from 305 in 1996-1999 to 88 in 2010-2011 (p < 0.001), with an adjusted RR of 6.6 (95% CI: 2.7-16.1) compared with HIV-uninfected subjects in 2010-2011. Risk factors for IPD among HIV-infected individuals included black compared with white race/ethnicity, smoking, cancer, and higher HIV RNA levels. The 23-valent pneumococcal polysaccharide vaccination was not associated with a reduced risk of IPD in HIV-infected or HIV-uninfected individuals. Among HIV-infected IPD cases, the most common serotype was 19A (33%), and 59% of serotypes were covered by the 13-valent pneumococcal conjugate vaccine (PCV13). Despite a dramatic decline in IPD incidence for HIV-infected adults since 1996, IPD rates were nearly sevenfold higher compared with HIV-uninfected adults in recent years, even after adjustment for risk factors. Timely antiretroviral therapy initiation, risk reduction strategies, and recent guidelines recommending PCV13 use may further reduce IPD incidence among HIV patients.
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Affiliation(s)
- Julia L. Marcus
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Roger Baxter
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Wendy A. Leyden
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | | | - Arnold Yee
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Michael A. Horberg
- Kaiser Permanente Mid-Atlantic States, Mid-Atlantic Permanente Research Institute, Rockville, Maryland
| | - Daniel B. Klein
- Kaiser Permanente Northern California, San Leandro Medical Center, San Leandro, California
| | - William J. Towner
- Kaiser Permanente Southern California, Los Angeles Medical Center, Los Angeles, California
| | - Chun R. Chao
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
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Chronic HIV-1 Infection Induces B-Cell Dysfunction That Is Incompletely Resolved by Long-Term Antiretroviral Therapy. J Acquir Immune Defic Syndr 2016; 71:381-9. [PMID: 26914910 DOI: 10.1097/qai.0000000000000869] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To determine the effect of long-term antiretroviral therapy (ART) on HIV-1-induced B-cell dysfunction. DESIGN Comparative study of ART-naive and ART-treated HIV-infected patients with non-HIV controls. METHODS B-cell dysfunction was examined in patients with HIV-1 infection (n = 30) who had received ART for a median time of 9.25 years (range: 1.3-21.7) by assessing proportions of CD21 B cells (a marker of B-cell exhaustion) and proportions of tumor necrosis factor-related apoptosis-inducing ligand or B and T lymphocyte attenuator B cells, and serum levels of immunoglobulin free light chains (markers of B-cell hyperactivation). The association of these markers with serum levels of IgG1 and IgG2, and production of IgG antibodies after vaccination with pneumococcal polysaccharides were also examined. ART-naive patients with HIV (n = 20) and controls (n = 20) were also assessed for comparison. RESULTS ART-treated patients had increased proportions of CD21 and tumor necrosis factor-related apoptosis-inducing ligand B cells and, furthermore, although proportions of B and T lymphocyte attenuator B cells were not significantly different from controls, they correlated negatively with CD21 B cells. Proportions of CD21 B cells also correlated negatively with current CD4 T-cell counts. In ART-naive patients with HIV, free light chains correlated with CD21 B cells and IgG1, but not IgG2. Serum IgG2:IgG1 ratios were substantially lower than normal in patients with HIV and did not resolve on ART. In ART-treated patients, IgG antibody responses to pneumococcal polysaccharides after vaccination were not associated with markers of B-cell dysfunction. CONCLUSIONS B-cell dysfunction persists in patients with HIV receiving long-term ART. The causes and consequences of this require further investigation.
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32
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Berical AC, Harris D, Dela Cruz CS, Possick JD. Pneumococcal Vaccination Strategies. An Update and Perspective. Ann Am Thorac Soc 2016; 13:933-44. [PMID: 27088424 PMCID: PMC5461988 DOI: 10.1513/annalsats.201511-778fr] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 02/23/2016] [Indexed: 11/20/2022] Open
Abstract
Streptococcus pneumoniae is an important global pathogen that causes a wide range of clinical disease in children and adults. Pneumococcal pneumonia is by far the common presentation of noninvasive and invasive pneumococcal disease and affects the young, the elderly, and the immunocompromised disproportionately. Patients with chronic pulmonary diseases are also at higher risk for pneumococcal infections. Substantial progress over the century has been made in the understanding of pneumococcal immunobiology and the prevention of invasive pneumococcal disease through vaccination. Currently, two pneumococcal vaccines are available for individuals at risk of pneumococcal disease: the 23-valent pneumococcal polysaccharide vaccine (PPV23) and the 13-valent pneumococcal protein-conjugate vaccine (PCV13). The goal of pneumococcal vaccination is to stimulate effective antipneumococcal antibody and mucosal immunity response and immunological memory. Vaccination of infants and young children with pneumococcal conjugate vaccine has led to significant decrease in nasal carriage rates and pneumococcal disease in all age groups. Recent pneumococcal vaccine indication and schedule recommendations on the basis of age and risk factors are outlined in this Focused Review. As new pneumococcal vaccine recommendations are being followed, continued efforts are needed to address the vaccine efficacy in the waning immunity of the ever-aging population, the implementation of vaccines using two different vaccines under very specific schedules and their real world clinical and cost effectiveness, and the development of next generation pneumococcal vaccines.
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Affiliation(s)
- Andrew C Berical
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Drew Harris
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Charles S Dela Cruz
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Jennifer D Possick
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
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Ciprero K, Zykov KA, Briko NI, Shekar T, Sterling TM, Bitieva E, Stek JE, Musey L. Safety and immunogenicity of a single dose 23-valent pneumococcal polysaccharide vaccine in Russian subjects. Hum Vaccin Immunother 2016; 12:2142-2147. [PMID: 27149114 DOI: 10.1080/21645515.2016.1165373] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Pneumococcal infection is a major cause of pneumonia, bacteremia, and meningitis. Incidence of pneumococcal disease (PD) varies worldwide. The 23-valent pneumococcal polysaccharide vaccine (PPV23) displays an acceptable safety profile and has been demonstrated cost-effective in reducing burden of PD. METHODS Approximately 100 subjects from the Russian Federation who were either 2 to 49 y of age with increased risk for PD or ≥50 years of age were enrolled into the study (NCT01734239) to receive a single dose of PPV23 administered intramuscularly. Each subject was followed for local and systemic adverse events (AEs) for 5 and 14 days, respectively. Serious AEs were collected for 28 d postvaccination. Blood samples were collected immediately prior to vaccination and 28 d postvaccination for the measurement of IgG to serotypes 1, 6B, 14, 19F, and 23F. RESULTS High proportion of subjects had ≥2 -fold increase in IgG following receipt of PPV23. Rates were 92.0%, 83.0%, 89.0%, 81%, 84% for serotypes 1, 6B, 14, 19F, and 23F, respectively. Similar rates of responders and increases in the magnitude of immune responses were observed in both age groups (2-49, ≥50 ). PPV23 was generally safe and well tolerated. Injection site and systemic AEs were reported by 14.7% and 18.6% of study subjects, respectively. CONCLUSIONS PPV23 is generally safe, well tolerated, and highly immunogenic when given as a single dose to Russian individuals 50 y of age and older, as well as Russian individuals 2 to 49 y of age who are at high risk for PD.
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Affiliation(s)
| | - Kirill A Zykov
- b Moscow State University of Medicine and Dentistry , Moscow , Russian Federation
| | - Nikolay I Briko
- c I.M. Sechenov First Moscow State Medical University , Moscow , Russian Federation
| | | | | | - Elizaveta Bitieva
- d Merck Sharp & Dohme (MSD) Pharmaceuticals LLC , Moscow , Russian Federation
| | - Jon E Stek
- a Merck & Co., Inc. , Kenilworth , NJ , USA
| | - Luwy Musey
- a Merck & Co., Inc. , Kenilworth , NJ , USA
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Long-term immune responses and comparative effectiveness of one or two doses of 7-valent pneumococcal conjugate vaccine (PCV7) in HIV-positive adults in the era of combination antiretroviral therapy. J Int AIDS Soc 2016; 19:20631. [PMID: 26829360 PMCID: PMC4733944 DOI: 10.7448/ias.19.1.20631] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 12/04/2015] [Accepted: 12/21/2015] [Indexed: 12/04/2022] Open
Abstract
Introduction HIV infection impairs maintenance of immunological memory, yet few studies of HIV-positive adults receiving 7-valent pneumococcal conjugate vaccine (PCV7) have followed them beyond the first year. We determined and compared the durability of serological responses and the clinical outcomes of HIV-positive adults annually for five years following vaccination with one or two doses of PCV7. Methods In this non-randomized clinical trial, 221 pneumococcal vaccine-naïve HIV-positive adults receiving one (n=109) or two doses four weeks apart (n=112) of PCV7 between 2008 and 2010 were longitudinally followed for evaluation of significant serological response and for episodes of pneumonia and invasive pneumococcal disease. Results At the time of vaccination, the two groups were well matched for age, risk factors, combination antiretroviral therapy (cART) coverage, CD4 count and plasma HIV RNA load (PVL). At the end of five years, the CD4 counts for the one- and two-dose groups had increased from 407 and 406 to 550 and 592 cells/µL, respectively, and 82.4 and 81.6% of the participants had fully suppressed PVL. Significant immune responses to ≥2 serotypes persisted for 67.9 vs 78.6%, 64.2 vs 71.4%, 66.1 vs 71.4%, 57.8 vs 69.6% in the second, third, fourth and fifth years after one and two doses of PCV7 in the intention-to-treat analysis, respectively. In multivariate analysis, immunization with two doses of PCV7 (odds ratio (OR) 1.71, 95% confidence interval (CI) 1.10 to 2.65, p=0.016), concurrent cART (OR 2.16, 95% CI 1.16 to 4.00, p=0.015) and CD4 proliferation (OR 1.12, 95% CI 1.01 to 1.27, p=0.031) were predictive of persistent serological responses in the fifth year. Only one patient in the one-dose group had documented pneumococcal pneumonia (non-bacteraemic) and none had invasive pneumococcal disease in the 6.5 years of follow-up. Conclusions One or two doses of PCV7 achieve durable seroprotective responses in HIV-treated participants; however, two doses may be more robust than one dose in a larger study population or in real-world populations with less cART coverage.
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Sadlier C, Bennett K, Matthews A, Mockler D, Wilson F, Bergin C. Pneumococcal vaccine for preventing Streptococcus pneumoniae
infection in HIV-infected individuals. Hippokratia 2016. [DOI: 10.1002/14651858.cd002236.pub2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Corinna Sadlier
- St James's Hospital; Department of Genitourinary Medicine and Infectious Diseases (GUIDE); Dublin Ireland
| | - Kathleen Bennett
- School of Medicine, Trinity College Dublin; Department of Pharmacology and Therapeutics; St James's Hospital Dublin Ireland
| | - Anne Matthews
- Dublin City University; School of Nursing and Human Sciences; Collins Avenue Dublin Ireland 9
| | - David Mockler
- Trinity Centre for Health Sciences, St. James Hospital; John Stearne Library; St James's Hospital Dublin 8 Dublin Ireland
| | - Fiona Wilson
- Trinity College Dublin; School of Medicine, Discipline of Physiotherapy; Trinity Centre for Health Sciences St James's Hospital Dublin Ireland 8
| | - Colm Bergin
- St James's Hospital; Department of Genitourinary Medicine and Infectious Diseases (GUIDE); Dublin Ireland
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Zachariah D, Manga P. HIV and invasive pneumococcal infection. Int J Cardiol 2015; 198:157-8. [DOI: 10.1016/j.ijcard.2015.06.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 06/27/2015] [Indexed: 10/23/2022]
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Shigayeva A, Rudnick W, Green K, Chen DK, Demczuk W, Gold WL, Johnstone J, Kitai I, Krajden S, Lovinsky R, Muller M, Powis J, Rau N, Walmsley S, Tyrrell G, Bitnun A, McGeer A. Invasive Pneumococcal Disease Among Immunocompromised Persons: Implications for Vaccination Programs. Clin Infect Dis 2015; 62:139-47. [DOI: 10.1093/cid/civ803] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Accepted: 07/28/2015] [Indexed: 12/31/2022] Open
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Rao PSS, Kumar S. Polycyclic aromatic hydrocarbons and cytochrome P450 in HIV pathogenesis. Front Microbiol 2015; 6:550. [PMID: 26082767 PMCID: PMC4451413 DOI: 10.3389/fmicb.2015.00550] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 05/19/2015] [Indexed: 12/19/2022] Open
Abstract
High prevalence of cigarette smoking in HIV patients is associated with increased HIV pathogenesis and disease progression. While the effect of smoking on the occurrence of lung cancer has been studied extensively, the association between smoking and HIV pathogenesis is poorly studied. We have recently shown the possible role of cytochrome P450 (CYP) in smoking/nicotine-mediated viral replication. In this review, we focus on the potential role of CYP pathway in polycyclic aromatic hydrocarbons (PAH), important constituents of cigarette smoke, mediated HIV pathogenesis. More specifically, we will discuss the role of CYP1A1 and CYP1B1, which are the major PAH-activating CYP enzymes. Our results have shown that treatment with cigarette smoke condensate (CSC) increases viral replication in HIV-infected macrophages. CSC contains PAH, which are known to be activated by CYP1A1 and CYP1B1 into procarcinogens/toxic metabolites. The expression of these CYPs is regulated by aryl hydrocarbon receptors (AHR), the cellular target of PAH, and an important player in various diseases including cancer. We propose that PAH/AHR-mediated CYP pathway is a novel target to develop new interventions for HIV positive smokers.
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Affiliation(s)
- P S S Rao
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , Memphis, TN, USA
| | - Santosh Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , Memphis, TN, USA
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Kantsø B, Green N, Goldblatt D, Benfield T. Antibody Response is More Likely to Pneumococcal Proteins Than to Polysaccharide After HIV-associated Invasive Pneumococcal Disease. J Infect Dis 2015; 212:1093-9. [PMID: 25762789 DOI: 10.1093/infdis/jiv158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 03/06/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV)-infected individuals are at increased risk of invasive pneumococcal disease (IPD). In order to assess the immunogenicity of pneumococcal proteins and polysaccharide, we investigated protein and serotype-specific antibody responses after HIV-associated IPD. METHODS Specific antipneumococcal immunoglobulin G to 27 pneumococcal protein antigens and 30 serotype polysaccharides was measured in plasma before and after IPD in HIV-infected individuals and compared to HIV-infected individuals without IPD. RESULTS Over time, 81% of IPD cases responded to at least 1 protein compared to 51% of non-IPD controls. HIV IPD cases responded to more proteins than non-IPD controls (8.6 ± 8.4 vs 4.2 ± 7.6 proteins; P = .01), and had a significantly higher probability of yielding an antibody response to the proteins PiaA, PsaA, and PcpA. Twenty-two percent of HIV-infected individuals with IPD had a serotype-specific antibody response. Younger age at the time of IPD was the only predictor of a serotype-specific pneumococcal antibody response, whereas we did not identify predictors of a protein-specific antibody response. CONCLUSIONS Antibody responses occurred more frequently to pneumococcal proteins than to polysaccharide, and protein antibodies persisted for longer than polysaccharide-specific antibodies. PcpA, PiaA, and PsaA were the most immunogenic proteins.
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Affiliation(s)
- Bjørn Kantsø
- Department of Microbiological Diagnostics and Virology, Statens Serum Institut, Copenhagen, Denmark
| | - Nicola Green
- Immunobiology Unit, Institute of Child Health, University College London, United Kingdom
| | - David Goldblatt
- Immunobiology Unit, Institute of Child Health, University College London, United Kingdom
| | - Thomas Benfield
- Department of Infectious Diseases Clinical Research Centre, Hvidovre Hospital Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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