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Effect of Monkeypox Virus Preparation on the Lethality of the Intravenous Cynomolgus Macaque Model. Viruses 2022; 14:v14081741. [PMID: 36016363 PMCID: PMC9413320 DOI: 10.3390/v14081741] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 02/05/2023] Open
Abstract
For over two decades, researchers have sought to improve smallpox vaccines and also develop therapies to ensure protection against smallpox or smallpox-like disease. The 2022 human monkeypox pandemic is a reminder that these efforts should persist. Advancing such therapies have involved animal models primarily using surrogate viruses such as monkeypox virus. The intravenous monkeypox model in macaques produces a disease that is clinically similar to the lesional phase of fulminant human monkeypox or smallpox. Two criticisms of the model have been the unnatural route of virus administration and the high dose required to induce severe disease. Here, we purified monkeypox virus with the goal of lowering the challenge dose by removing cellular and viral contaminants within the inoculum. We found that there are advantages to using unpurified material for intravenous exposures.
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Parmar K, Subramanyam S, Del Rio-Pertuz G, Sethi P, Argueta-Sosa E. Cardiac Adverse Events after Vaccination—A Systematic Review. Vaccines (Basel) 2022; 10:vaccines10050700. [PMID: 35632455 PMCID: PMC9143985 DOI: 10.3390/vaccines10050700] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/12/2022] [Accepted: 04/20/2022] [Indexed: 01/27/2023] Open
Abstract
The Vaccine Adverse Event Reporting System database has been used to report adverse events following several vaccines. We studied the patient population predisposed to such reactions and how these reactions differ with respect to the vaccine type. We searched the electronic databases PubMed, EMBASE, and Scopus up to 9 July 2021 for any study describing cardiac adverse events attributed to the vaccination. A total of 56 studies met the criteria comprising 340 patients. There were 20 studies describing cardiac adverse events following smallpox vaccination, 11 studies describing adverse events after influenza vaccination, and 18 studies describing adverse events after COVID-19 vaccination. There was a total of six studies describing cardiac adverse events after the pneumococcal vaccine, tetanus toxoid, cholera vaccine, and rabies vaccine. Adverse events following influenza vaccination occurred more commonly in older females within an average duration of four days from vaccination. Pericardial involvement was the most reported adverse event. Adverse events following COVID-19 vaccination happened at a mean age of 42.7 years, more commonly in males, and mostly after a second dose. Adverse events following smallpox vaccination occurred more commonly in younger males, with an average onset of symptoms from vaccination around 16.6 days. Adverse events were mostly myopericarditis; however, the acute coronary syndrome has been reported with some vaccines.
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Affiliation(s)
- Kanak Parmar
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA;
- Correspondence:
| | - Sai Subramanyam
- School of Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore 560048, India;
| | - Gaspar Del Rio-Pertuz
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA;
| | - Pooja Sethi
- Department of Cardiovascular Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; (P.S.); (E.A.-S.)
| | - Erwin Argueta-Sosa
- Department of Cardiovascular Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; (P.S.); (E.A.-S.)
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Ling RR, Ramanathan K, Tan FL, Tai BC, Somani J, Fisher D, MacLaren G. Myopericarditis following COVID-19 vaccination and non-COVID-19 vaccination: a systematic review and meta-analysis. THE LANCET RESPIRATORY MEDICINE 2022; 10:679-688. [PMID: 35421376 PMCID: PMC9000914 DOI: 10.1016/s2213-2600(22)00059-5] [Citation(s) in RCA: 90] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/09/2022] [Accepted: 02/09/2022] [Indexed: 12/17/2022]
Abstract
Background Myopericarditis is a rare complication of vaccination. However, there have been increasing reports of myopericarditis following COVID-19 vaccination, especially among adolescents and young adults. We aimed to characterise the incidence of myopericarditis following COVID-19 vaccination, and compare this with non-COVID-19 vaccination. Methods We did a systematic review and meta-analysis, searching four international databases from Jan 1, 1947, to Dec 31, 2021, for studies in English reporting on the incidence of myopericarditis following vaccination (the primary outcome). We included studies reporting on people in the general population who had myopericarditis in temporal relation to receiving vaccines, and excluded studies on a specific subpopulation of patients, non-human studies, and studies in which the number of doses was not reported. Random-effects meta-analyses (DerSimonian and Laird) were conducted, and the intra-study risk of bias (Joanna Briggs Institute checklist) and certainty of evidence (Grading of Recommendations, Assessment, Development and Evaluations approach) were assessed. We analysed the difference in incidence of myopericarditis among subpopulations, stratifying by the type of vaccine (COVID-19 vs non-COVID-19) and age group (adult vs paediatric). Among COVID-19 vaccinations, we examined the effect of the type of vaccine (mRNA or non-mRNA), sex, age, and dose on the incidence of myopericarditis. This study was registered with PROSPERO (CRD42021275477). Findings The overall incidence of myopericarditis from 22 studies (405 272 721 vaccine doses) was 33·3 cases (95% CI 15·3–72·6) per million vaccine doses, and did not differ significantly between people who received COVID-19 vaccines (18·2 [10·9–30·3], 11 studies [395 361 933 doses], high certainty) and those who received non-COVID-19 vaccines (56·0 [10·7–293·7], 11 studies [9 910 788 doses], moderate certainty, p=0·20). Compared with COVID-19 vaccination, the incidence of myopericarditis was significantly higher following smallpox vaccinations (132·1 [81·3–214·6], p<0·0001) but was not significantly different after influenza vaccinations (1·3 [0·0–884·1], p=0·43) or in studies reporting on various other non-smallpox vaccinations (57·0 [1·1–3036·6], p=0·58). Among people who received COVID-19 vaccines, the incidence of myopericarditis was significantly higher in males (vs females), in people younger than 30 years (vs 30 years or older), after receiving an mRNA vaccine (vs non-mRNA vaccine), and after a second dose of vaccine (vs a first or third dose). Interpretation The overall risk of myopericarditis after receiving a COVID-19 vaccine is low. However, younger males have an increased incidence of myopericarditis, particularly after receiving mRNA vaccines. Nevertheless, the risks of such rare adverse events should be balanced against the risks of COVID-19 infection (including myopericarditis). Funding None.
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Affiliation(s)
- Ryan Ruiyang Ling
- Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore
| | - Kollengode Ramanathan
- Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore; Cardiothoracic Intensive Care Unit, National University Heart Centre, National University Hospital, Singapore.
| | - Felicia Liying Tan
- Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore
| | - Bee Choo Tai
- Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore; Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore
| | - Jyoti Somani
- Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore; Division of Infectious Diseases, Department of Medicine, National University Hospital, Singapore
| | - Dale Fisher
- Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore; Division of Infectious Diseases, Department of Medicine, National University Hospital, Singapore
| | - Graeme MacLaren
- Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore; Cardiothoracic Intensive Care Unit, National University Heart Centre, National University Hospital, Singapore
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Torre C, Cary M, Borges FC, Ferreira PS, Alarcão J, Leufkens HG, Costa J, Martins AP. Intensive Monitoring Studies for Assessing Medicines: A Systematic Review. Front Med (Lausanne) 2019; 6:147. [PMID: 31380375 PMCID: PMC6659411 DOI: 10.3389/fmed.2019.00147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 06/12/2019] [Indexed: 01/01/2023] Open
Abstract
Introduction: Intensive monitoring (IM) is one of the methods of post-marketing active surveillance based upon event monitoring, which has received interest in the current medicines regulatory landscape. For a specific period of time, IM involves primary data collection and is actively focused on gathering longitudinal information, mainly safety, since the first day of drug use. Objectives: To describe IM systems and studies' data published over 11-years period (2006–2016). Specifically, we reviewed study population/event surveillance, methodological approaches, limitations, and its applications in the real-world evidence generation data. Methods: We completed a systematic search of MEDLINE and EMBASE to identify studies published from 2006 to 2016, that used IM methodology. We extracted data using a standardized form and results were analyzed descriptively. The methodological quality of selected studies was assessed using the modified Downs and Black checklist. Results: From 1,400 screened citations, we identified 86 papers, corresponding to 69 different studies. Seventy percent of reviewed studies corresponded to established IM systems, of which, more than half were prescription event monitoring (PEM) and modified-PEM. Among non-established IM systems, vaccines were the most common studied drugs (n = 14). The median cohort size ranged from 488 (hospitals) to 10,479 (PEM) patients. Patients and caregivers were the event data source in 39.1% of studies. The mean overall quality score was similar between established and non-established IM. Conclusions: Over the study period, IM studies were implemented in 26 countries with different maturity levels of post-marketing surveillance systems. We identified two major limitations: only 20% of studies were conducted at hospital-level, which is a matter of concern, insofar as healthcare systems are facing a lack of access to new medicines at ambulatory care level. Additionally, IM access to data of drug exposure cohorts, either at identification or at follow-up stages, could somehow constitute a barrier, given the complexity of managerial, linkable, and privacy data issues.
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Affiliation(s)
- Carla Torre
- Centre for Health Evaluation and Research (CEFAR), National Association of Pharmacies, Lisbon, Portugal.,Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal
| | - Maria Cary
- Centre for Health Evaluation and Research (CEFAR), National Association of Pharmacies, Lisbon, Portugal
| | - Fábio Cardoso Borges
- Department of Epidemiology and National Cancer Registry (RON), Portuguese Institute of Oncology, Francisco Gentil, E.P.E., Lisbon, Portugal
| | - Paula S Ferreira
- Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal.,Setubal and Santarem Regional Pharmacovigilance Unit, Lisbon, Portugal
| | - Joana Alarcão
- Faculty of Medicine, Center for Evidence-Based Medicine, University of Lisbon, Lisbon, Portugal
| | - Hubert G Leufkens
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - João Costa
- Faculty of Medicine, Center for Evidence-Based Medicine, University of Lisbon, Lisbon, Portugal.,Faculty of Medicine, Institute of Molecular Medicine and Laboratory of Clinical Pharmacology and Therapeutics, University of Lisbon, Lisbon, Portugal
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Zitzmann-Roth EM, von Sonnenburg F, de la Motte S, Arndtz-Wiedemann N, von Krempelhuber A, Uebler N, Vollmar J, Virgin G, Chaplin P. Cardiac safety of Modified Vaccinia Ankara for vaccination against smallpox in a young, healthy study population. PLoS One 2015; 10:e0122653. [PMID: 25879867 PMCID: PMC4399887 DOI: 10.1371/journal.pone.0122653] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 02/16/2015] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Conventional smallpox vaccines based on replicating vaccinia virus (VV) strains (e.g. Lister Elstree, NYCBOH) are associated with a high incidence of myo-/pericarditis, a severe inflammatory cardiac complication. A new smallpox vaccine candidate based on a non-replicating Modified Vaccinia Ankara (MVA) poxvirus has been assessed for cardiac safety in a large placebo-controlled clinical trial. METHODS Cardiac safety of one and two doses of MVA compared to placebo was assessed in 745 healthy subjects. Vaccinia-naïve subjects received either one dose of MVA and one dose of placebo, two doses of MVA, or two doses of placebo by subcutaneous injection four weeks apart; vaccinia-experienced subjects received a single dose of MVA. Solicited and unsolicited adverse events (AE) and cardiac safety parameters (recorded as Adverse Events of Special Interest, AESI) were monitored after each injection. RESULTS A total of 5 possibly related AESI (3 cases of palpitations, 2 of tachycardia) were reported during the study. No case of myo- or pericarditis occurred. One possibly related serious AE (SAE) was reported during the 6-month follow-up period (sarcoidosis). The most frequently observed AEs were injection site reactions. CONCLUSIONS Vaccination with MVA was safe and well tolerated and did not increase the risk for development of myo-/pericarditis. TRIAL REGISTRATION ClinicalTrials.gov NCT00316524.
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Affiliation(s)
| | - Frank von Sonnenburg
- Department of Infectious Diseases and Tropical Medicine, Section of International Medicine and Public Health, Ludwig-Maximilians-Universität, Munich, Germany
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A prospective study of the incidence of myocarditis/pericarditis and new onset cardiac symptoms following smallpox and influenza vaccination. PLoS One 2015; 10:e0118283. [PMID: 25793705 PMCID: PMC4368609 DOI: 10.1371/journal.pone.0118283] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 01/12/2015] [Indexed: 02/01/2023] Open
Abstract
Background Although myocarditis/pericarditis (MP) has been identified as an adverse event following smallpox vaccine (SPX), the prospective incidence of this reaction and new onset cardiac symptoms, including possible subclinical injury, has not been prospectively defined. Purpose The study’s primary objective was to determine the prospective incidence of new onset cardiac symptoms, clinical and possible subclinical MP in temporal association with immunization. Methods New onset cardiac symptoms, clinical MP and cardiac specific troponin T (cTnT) elevations following SPX (above individual baseline values) were measured in a multi-center prospective, active surveillance cohort study of healthy subjects receiving either smallpox vaccine or trivalent influenza vaccine (TIV). Results New onset chest pain, dyspnea, and/or palpitations occurred in 10.6% of SPX-vaccinees and 2.6% of TIV-vaccinees within 30 days of immunization (relative risk (RR) 4.0, 95% CI: 1.7-9.3). Among the 1081 SPX-vaccinees with complete follow-up, 4 Caucasian males were diagnosed with probable myocarditis and 1 female with suspected pericarditis. This indicates a post-SPX incidence rate more than 200-times higher than the pre-SPX background population surveillance rate of myocarditis/pericarditis (RR 214, 95% CI 65-558). Additionally, 31 SPX-vaccinees without specific cardiac symptoms were found to have over 2-fold increases in cTnT (>99th percentile) from baseline (pre-SPX) during the window of risk for clinical myocarditis/pericarditis and meeting a proposed case definition for possible subclinical myocarditis. This rate is 60-times higher than the incidence rate of overt clinical cases. No clinical or possible subclinical myocarditis cases were identified in the TIV-vaccinated group. Conclusions Passive surveillance significantly underestimates the true incidence of myocarditis/pericarditis after smallpox immunization. Evidence of subclinical transient cardiac muscle injury post-vaccinia immunization is a finding that requires further study to include long-term outcomes surveillance. Active safety surveillance is needed to identify adverse events that are not well understood or previously recognized.
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7
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Block J. Smallpox Vaccines and Eczema. Biosecur Bioterror 2014; 12:218. [DOI: 10.1089/bsp.2014.0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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8
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Arndtz-Wiedemann N. Myocardial Effects of IMVAMUNE. Biosecur Bioterror 2014; 12:217-8. [DOI: 10.1089/bsp.2014.0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Jacobs BL, Langland JO, Kibler KV, Denzler KL, White SD, Holechek SA, Wong S, Huynh T, Baskin CR. Vaccinia virus vaccines: past, present and future. Antiviral Res 2009; 84:1-13. [PMID: 19563829 PMCID: PMC2742674 DOI: 10.1016/j.antiviral.2009.06.006] [Citation(s) in RCA: 170] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Revised: 05/30/2009] [Accepted: 06/04/2009] [Indexed: 12/23/2022]
Abstract
Vaccinia virus (VACV) has been used more extensively for human immunization than any other vaccine. For almost two centuries, VACV was employed to provide cross-protection against variola virus, the causative agent of smallpox, until the disease was eradicated in the late 1970s. Since that time, continued research on VACV has produced a number of modified vaccines with improved safety profiles. Attenuation has been achieved through several strategies, including sequential passage in an alternative host, deletion of specific genes or genetic engineering of viral genes encoding immunomodulatory proteins. Some highly attenuated third- and fourth-generation VACV vaccines are now being considered for stockpiling against a possible re-introduction of smallpox through bioterrorism. Researchers have also taken advantage of the ability of the VACV genome to accommodate additional genetic material to produce novel vaccines against a wide variety of infectious agents, including a recombinant VACV encoding the rabies virus glycoprotein that is administered orally to wild animals. This review provides an in-depth examination of these successive generations of VACV vaccines, focusing on how the understanding of poxviral replication and viral gene function permits the deliberate modification of VACV immunogenicity and virulence.
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Affiliation(s)
- Bertram L Jacobs
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-5401, USA.
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Wei H, Huang D, Fortman J, Wang R, Shao L, Chen ZW. Coadministration of cidofovir and smallpox vaccine reduced vaccination side effects but interfered with vaccine-elicited immune responses and immunity to monkeypox. J Virol 2009; 83:1115-25. [PMID: 19004937 PMCID: PMC2612404 DOI: 10.1128/jvi.00984-08] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2008] [Accepted: 11/02/2008] [Indexed: 11/20/2022] Open
Abstract
While the smallpox vaccine, Dryvax or Dryvax-derived ACAM2000, holds potential for public immunization against the spread of smallpox by bioterror, there is serious concern about Dryvax-mediated side effects. Here, we report that a single-dose vaccination regimen comprised of Dryvax and an antiviral agent, cidofovir, could reduce vaccinia viral loads after vaccination and significantly control Dryvax vaccination side effects. However, coadministration of cidofovir and Dryvax also reduced vaccine-elicited immune responses of antibody and T effector cells despite the fact that the reduced priming could be boosted as a recall response after monkeypox virus challenge. Evaluations of four different aspects of vaccine efficacy showed that coadministration of cidofovir and Dryvax compromised the Dryvax-induced immunity against monkeypox, although the covaccinated monkeys exhibited measurable protection against monkeypox compared to that of naïve controls. Thus, the single-dose coadministration of cidofovir and Dryvax effectively controlled vaccination side effects but significantly compromised vaccine-elicited immune responses and vaccine-induced immunity to monkeypox.
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Affiliation(s)
- Huiyong Wei
- Department of Immunology and Microbiology, Center for Primate Biomedical Research, University of Illinois at Chicago, Chicago, Illinois 60612, USA
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Jacobson IG, Smith TC, Smith B, Wells TS, Reed RJ, Ryan MAK. US military service members vaccinated against smallpox in 2003 and 2004 experience a slightly higher risk of hospitalization postvaccination. Vaccine 2008; 26:4048-56. [PMID: 18586364 DOI: 10.1016/j.vaccine.2008.05.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Revised: 05/01/2008] [Accepted: 05/09/2008] [Indexed: 11/28/2022]
Abstract
This study explores adverse events severe enough to warrant hospitalization that may have been associated with receiving the smallpox vaccine in conjunction with military service. Cox proportional hazards modeling was used to identify the risk of hospitalization among US active-duty military personnel during a 1-year period following receipt of the smallpox vaccine. The reference group consisted of active-duty military personnel who also received the smallpox vaccine after the conclusion of their health care observation period, allowing for comparison to a temporally and demographically similar population. The risk of hospitalization was slightly elevated among the postvaccine group for any-cause hospitalization and for hospitalization in several broad diagnostic categories. Hospitalizations for asthma, autoimmune diseases, and myopericarditis, were more likely in the postvaccine group. The increased risk of hospitalization for varied outcomes does not necessarily imply a cause-effect relationship, but it does offer areas for more focused study, using longitudinal data to explore the long-term impact of smallpox vaccination on the health of young adults.
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Affiliation(s)
- Isabel G Jacobson
- Department of Defense Center for Deployment Health Research at the Naval Health Research Center, 140 Sylvester Road, San Diego, CA 92106-3521, USA.
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Neff J, Modlin J, Birkhead GS, Poland G, Robertson RM, Sepkowitz K, Yancy C, Gardner P, Gray GC, Maurer T, Siegel J, Guerra FA, Berger T, Flanders WD, Shope R. Monitoring the safety of a smallpox vaccination program in the United States: report of the joint Smallpox Vaccine Safety Working Group of the advisory committee on immunization practices and the Armed Forces Epidemiological Board. Clin Infect Dis 2008; 46 Suppl 3:S258-70. [PMID: 18284367 DOI: 10.1086/524749] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
In December 2002, the Centers for Disease Control and Prevention's Advisory Committee on Immunization Practices and the Department of Defense Armed Forces Epidemiological Board formed a joint Smallpox Vaccine Safety Working Group (SVS WG) to provide independent safety oversight for smallpox vaccination safety-monitoring systems. From January 2003 through June 2004, the SVS WG reviewed individual and aggregate safety data on postvaccination adverse events. Serious adverse events were rare because of careful education, prevaccination screening, and strict attention to vaccination-site management. Recent vaccinees safely cared for high-risk patients, adhering to recommended site care. Human immunodeficiency virus-infected individuals without severe immunosuppression had uncomplicated vaccination reactions. Epidemiological studies supported a causal relationship between myocarditis and/or pericarditis and smallpox vaccination. Data supported neutrality regarding hypothesized causal associations between vaccination and dilated cardiomyopathy or ischemic cardiac disease. The SVS WG concurs with recommendations to defer from vaccination any person with >/=3 ischemic cardiac disease risk factors.
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Affiliation(s)
- John Neff
- Children's Hospital and Regional Medical Center, Seattle, Washington, USA.
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Morgan J, Roper MH, Sperling L, Schieber RA, Heffelfinger JD, Casey CG, Miller JW, Santibanez S, Herwaldt B, Hightower P, Moro PL, Hibbs BF, Levine NH, Chapman LE, Iskander J, Lane JM, Wharton M, Mootrey GT, Swerdlow DL. Myocarditis, pericarditis, and dilated cardiomyopathy after smallpox vaccination among civilians in the United States, January-October 2003. Clin Infect Dis 2008; 46 Suppl 3:S242-50. [PMID: 18284365 DOI: 10.1086/524747] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Myocarditis was reported after smallpox vaccination in Europe and Australia, but no association had been reported with the US vaccine. We conducted surveillance to describe and determine the frequency of myocarditis and/or pericarditis (myo/pericarditis) among civilians vaccinated during the US smallpox vaccination program between January and October 2003. We developed surveillance case definitions for myocarditis, pericarditis, and dilated cardiomyopathy after smallpox vaccination. We identified 21 myo/pericarditis cases among 37,901 vaccinees (5.5 per 10,000); 18 (86%) were revacinees, 14 (67%) were women, and the median age was 48 years (range, 25-70 years). The median time from vaccination to onset of symptoms was 11 days (range, 2-42 days). Myo/pericarditis severity was mild, with no fatalities, although 9 patients (43%) were hospitalized. Three additional vaccinees were found to have dilated cardiomyopathy, recognized within 3 months after vaccination. We describe an association between smallpox vaccination, using the US vaccinia strain, and myo/pericarditis among civilians.
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Affiliation(s)
- Juliette Morgan
- Centers for Disease Control and Prevention and 2Department of Cardiology, Emory University School of Medicine, Atlanta, Georgia, USA
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Strikas R, Neff L, Rotz L, Cono J, Knutson D, Henderson J, Orenstein W. US Civilian Smallpox Preparedness and Response Program, 2003. Clin Infect Dis 2008; 46 Suppl 3:S157-67. [DOI: 10.1086/524751] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Chapman LE, Mootrey GT, Neff LJ. Introduction: vaccination against smallpox in the posteradication era. Clin Infect Dis 2008; 46 Suppl 3:S153-6. [PMID: 18284354 DOI: 10.1086/524379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The following introduction describes the context in which the national smallpox vaccination program was implemented and highlights the significance of the key policy, programmatic, or scientific challenges, observations, and lessons learned that are presented in the articles that follow within this supplement to Clinical Infectious Diseases. Although the execution of this national program posed multiple complex and varied challenges, the focus of this supplement is on vaccine-associated adverse events and vaccine safety.
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Affiliation(s)
- Louisa E Chapman
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
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Ortega‐Sanchez I, Sniadack M, Mootrey G. Economics of Cardiac Adverse Events after Smallpox Vaccination: Lessons from the 2003 US Vaccination Program. Clin Infect Dis 2008; 46 Suppl 3:S168-78. [DOI: 10.1086/524380] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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