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Pérez-Álamos AR, Aguilar-Durán M, Estrada Martínez S, Ramos-Nevárez A, Guido-Arreola CA, Sifuentes-Álvarez A, Cerrillo-Soto SM, Ibarra RG, Alvarado-Esquivel C. Association between ABO and Rh blood groups and Toxoplasma gondii infection: A cross sectional study. Eur J Microbiol Immunol (Bp) 2024; 14:44-49. [PMID: 38214709 PMCID: PMC10895359 DOI: 10.1556/1886.2023.00052] [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: 11/29/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024] Open
Abstract
We aimed to determine the association between the seropositivity to Toxoplasma gondii and the ABO and Rh blood groups in 2,053 people. ABO and Rhesus blood groups and anti-T. gondii IgG and IgM antibodies were determined using commercially available assays. Of the 2,053 people studied, 171 (8.3%) were positive for anti-T. gondii IgG antibodies. Sixty-five (38.0%) and 36 (21.1%) of these 171 individuals had high anti-T. gondii IgG antibody levels (≥150 IU mL-1) and anti-T. gondii IgM antibodies, respectively. We found the following prevalences of T. gondii infection among the ABO groups: 8.5% in group A, 4.3% in group B, 4.7% in group AB, and 8.9% in group O (P = 0.19). The prevalences of T. gondii infection among Rh groups were: 8.4% in the Rh-positive group and 7.1% in the Rh-negative group (P = 0.58). Logistic regression analysis showed that the frequencies of ABO and Rh blood groups were similar (P > 0.05) among people with positive and negative serology for anti-T. gondii IgG antibodies, with high (≥150 IU mL-1) and lower (<150 IU mL-1) levels of anti-T. gondii IgG antibodies, and with positive and negative serology for anti-T. gondii IgM antibodies. Results does not support an association between T. gondii infection and ABO and Rh blood groups.
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Affiliation(s)
- Alma Rosa Pérez-Álamos
- 1Institute for Scientific Research "Dr. Roberto Rivera-Damm", Juárez University of Durango State, Durango, Mexico
| | - Marisela Aguilar-Durán
- 1Institute for Scientific Research "Dr. Roberto Rivera-Damm", Juárez University of Durango State, Durango, Mexico
| | - Sergio Estrada Martínez
- 1Institute for Scientific Research "Dr. Roberto Rivera-Damm", Juárez University of Durango State, Durango, Mexico
| | - Agar Ramos-Nevárez
- 2Clínica de Medicina Familiar, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Durango, Mexico
| | - Carlos Alberto Guido-Arreola
- 2Clínica de Medicina Familiar, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Durango, Mexico
| | - Antonio Sifuentes-Álvarez
- 3Biomedical Research Laboratory, Faculty of Medicine and Nutrition, Juárez University of Durango State, Durango, Mexico
| | - Sandra Margarita Cerrillo-Soto
- 2Clínica de Medicina Familiar, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Durango, Mexico
| | - Raúl Graciano Ibarra
- 3Biomedical Research Laboratory, Faculty of Medicine and Nutrition, Juárez University of Durango State, Durango, Mexico
| | - Cosme Alvarado-Esquivel
- 3Biomedical Research Laboratory, Faculty of Medicine and Nutrition, Juárez University of Durango State, Durango, Mexico
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2
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Calero-Bernal R, Gennari SM, Cano S, Salas-Fajardo MY, Ríos A, Álvarez-García G, Ortega-Mora LM. Anti- Toxoplasma gondii Antibodies in European Residents: A Systematic Review and Meta-Analysis of Studies Published between 2000 and 2020. Pathogens 2023; 12:1430. [PMID: 38133313 PMCID: PMC10745778 DOI: 10.3390/pathogens12121430] [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: 10/19/2023] [Revised: 11/24/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
Toxoplasmosis has a major impact on animal and public health. Information regarding the seroprevalence of human Toxoplasma gondii infections from a European perspective has not yet been compiled to date. Thus, the present review summarized available resident data from the period 2000-2020. The overall seroprevalence of anti-T. gondii IgG was 32.1%, with great variability between countries (n = 30). The subgroup analysis identified different pooled prevalence data depending on the geographic area (p < 0.0001), target population (p = 0.0147), and serological diagnosis assays used (p = 0.0059). A high heterogeneity (I2 = 100%, p < 0.001; Q = 3.5e+05, d.f. = 135, p < 0.001) and degree of publication bias (Egger's test = 6.14, p < 0.001) were observed among the 134 studies considered. The occurrence of anti-T. gondii IgM, which was reported in 64.7% of studies, reached a pooled seroprevalence of 0.6%. In addition, among the eight main risk factors identified, "contact with soil", "consumption of undercooked beef", and "intake of unwashed vegetables" were the most significantly associated with infections. The fact that one-third of the European population has been exposed to T. gondii justifies extra efforts to harmonize surveillance systems and develop additional risk-factor analyses based on detailed source attribution assessment.
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Affiliation(s)
- Rafael Calero-Bernal
- SALUVET, Animal Health Department, Complutense University of Madrid, 28040 Madrid, Spain; (M.Y.S.-F.); (A.R.); (G.Á.-G.); (L.M.O.-M.)
| | - Solange María Gennari
- PhD Program in One Health, Faculty of Veterinary Medicine, University of Santo Amaro, São Paulo 04829-300, SP, Brazil;
- Faculty of Veterinary Medicine, University of São Paulo, São Paulo 05508-270, SP, Brazil
| | - Santiago Cano
- Computing Services, Research Support Center, Complutense University of Madrid, 28040 Madrid, Spain;
| | - Martha Ynés Salas-Fajardo
- SALUVET, Animal Health Department, Complutense University of Madrid, 28040 Madrid, Spain; (M.Y.S.-F.); (A.R.); (G.Á.-G.); (L.M.O.-M.)
| | - Arantxa Ríos
- SALUVET, Animal Health Department, Complutense University of Madrid, 28040 Madrid, Spain; (M.Y.S.-F.); (A.R.); (G.Á.-G.); (L.M.O.-M.)
| | - Gema Álvarez-García
- SALUVET, Animal Health Department, Complutense University of Madrid, 28040 Madrid, Spain; (M.Y.S.-F.); (A.R.); (G.Á.-G.); (L.M.O.-M.)
| | - Luis Miguel Ortega-Mora
- SALUVET, Animal Health Department, Complutense University of Madrid, 28040 Madrid, Spain; (M.Y.S.-F.); (A.R.); (G.Á.-G.); (L.M.O.-M.)
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Milne GC, Webster JP, Walker M. Is the incidence of congenital toxoplasmosis declining? Trends Parasitol 2023; 39:26-37. [PMID: 36400672 DOI: 10.1016/j.pt.2022.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 11/17/2022]
Abstract
Prenatal infection with the protozoan parasite Toxoplasma gondii can cause congenital toxoplasmosis (CT), an often fatal or lifelong-disabling condition. Several studies of human populations have reported temporal decreases in seroprevalence, suggesting declining CT incidence. However, the consistency of this trend among diverse populations remains unclear, as does its implication for prenatal screening programmes, the major intervention against CT. Using temporally resolved data on the seroprevalence of T. gondii in various countries, we discuss how the parasite's changing epidemiology may affect trends in CT incidence in varying and counterintuitive ways. We argue that parasite stage-specific serology could be helpful for understanding underlying causes of secular changes in seroprevalence. Furthermore, we highlight the importance of updating cost-effectiveness estimates of screening programmes, accounting for neuropsychiatric sequelae.
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Affiliation(s)
- Gregory Colin Milne
- Department of Pathobiology and Population Sciences, Royal Veterinary College, University of London, Herts, AL9 7TA, UK; London Centre for Neglected Tropical Disease Research, Imperial College London Faculty of Medicine, London, UK.
| | - Joanne P Webster
- Department of Pathobiology and Population Sciences, Royal Veterinary College, University of London, Herts, AL9 7TA, UK; London Centre for Neglected Tropical Disease Research, Imperial College London Faculty of Medicine, London, UK
| | - Martin Walker
- Department of Pathobiology and Population Sciences, Royal Veterinary College, University of London, Herts, AL9 7TA, UK; London Centre for Neglected Tropical Disease Research, Imperial College London Faculty of Medicine, London, UK
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Londoño-Martinez JC, Velasco-Velasquez S, Cordero-Lopez S, Osorio MF, Celis-Giraldo D, Thibodeau J, Baird I, McLeod R, Gomez-Marin J. Evaluation of the acceptability of point of care diagnostic test for prenatal toxoplasmosis (translational research phase III). J Infect Public Health 2022; 16:15-24. [PMID: 36446203 DOI: 10.1016/j.jiph.2022.11.023] [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: 09/26/2022] [Revised: 11/07/2022] [Accepted: 11/16/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND A new point of care test (POC) was developed that is promising as a tool to enhance impact of prenatal care programs for toxoplasmosis, however, no reports exist about its use or acceptability for healthcare personnel and mothers in Colombia. METHODS This was a translational research - phase III study of the acceptability of a new POC test (Toxoplasma ICT IgG-IgM, LDBio) for qualitative diagnosis of toxoplasmosis in 783 pregnant women and 30 health personnel in primary health care sites in the city of Armenia, Quindío (Colombia). Along with collection of the results of diagnostic POC and confirmatory test and demographic information, we evaluated acceptability through measure of the willingness, credibility, and satisfaction by using questionnaires with a Likert scale during routine prenatal care visits. RESULTS POC positivity was 46.5% among pregnant participants and was significantly related to socioeconomic factors, including education level (p = 0.00000000) and insurance status (p = 0.00000015). A total of 93-97% of healthcare personnel indicated agreement to positive statements regarding total satisfaction and total credibility of the LDBio test, but qualitative questions identified "Difficulty in the test procedure" as the most common response about barriers to apply the test. Greater than 90% of pregnant participants agree that POC test should be routine for all pregnant woman and permanently implemented. CONCLUSIONS The test had near complete acceptability. In future studies it is necessary to examine the effect of non-differentiation between IgG and IgM isotypes.
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Affiliation(s)
- Juan Camilo Londoño-Martinez
- Grupo Parasitología Molecular (GEPAMOL), Centro de Investigaciones Biomédicas, Facultad de Ciencias de la Salud, Universidad del Quindio, Armenia, Colombia
| | - Stefany Velasco-Velasquez
- Grupo Parasitología Molecular (GEPAMOL), Centro de Investigaciones Biomédicas, Facultad de Ciencias de la Salud, Universidad del Quindio, Armenia, Colombia
| | - Sara Cordero-Lopez
- Grupo Parasitología Molecular (GEPAMOL), Centro de Investigaciones Biomédicas, Facultad de Ciencias de la Salud, Universidad del Quindio, Armenia, Colombia
| | | | - Daniel Celis-Giraldo
- Grupo Parasitología Molecular (GEPAMOL), Centro de Investigaciones Biomédicas, Facultad de Ciencias de la Salud, Universidad del Quindio, Armenia, Colombia
| | - Juliette Thibodeau
- The College, The University of Chicago, Chicago, IL, USA; Center for Global Health, University of Chicago, Chicago, IL, USA
| | - Isabelle Baird
- The College, The University of Chicago, Chicago, IL, USA; Center for Global Health, University of Chicago, Chicago, IL, USA
| | - Rima McLeod
- Department of Pediatrics (Infectious Diseases Division, University of Chicago, Chicago, IL, USA; CHESSU, Committee on Immunology, University of Chicago, Chicago, IL, USA; Chicago Medicine University of Chicago, Chicago, IL, USA
| | - Jorge Gomez-Marin
- Grupo Parasitología Molecular (GEPAMOL), Centro de Investigaciones Biomédicas, Facultad de Ciencias de la Salud, Universidad del Quindio, Armenia, Colombia.
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The Impact of Latent Toxoplasma gondii Infection on Spontaneous Abortion History and Pregnancy Outcomes: A Large-Scale Study. Microorganisms 2022; 10:microorganisms10101944. [PMID: 36296220 PMCID: PMC9610914 DOI: 10.3390/microorganisms10101944] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Toxoplasma gondii (TG), a zoonotic protozoan parasite, belongs to a group of TORCH infectious agents, which can cause severe damage to the fetus if a primary infection occurs during pregnancy. After primary infection, TG rests lifelong in human organisms causing a latent infection. Most studies have analyzed the consequences of acute, but not latent, TG infection. This study analyzed the impact of latent toxoplasmosis on spontaneous abortion history, pregnancy complication rate and neonatal outcome. METHODS IgG and IgM anti-TG antibodies were tested in 806 pregnant women who were consulted at the Timisoara Clinical Emergency Hospital between 2008 and 2010. Demographic data, obstetrical history, and data about the pregnancy complications, birth and neonate were collected for each woman and comparisons between the groups, with and without latent TG infection, were made. RESULTS This study did not show differences between groups regarding the history of spontaneous abortion (OR = 1.288, p = 0.333), cesarean section (OR = 1.021, p = 0.884), placental abruption (OR 0.995, p = 0.266), pregnancy-induced hypertension rate (OR 1.083, p = 0.846), secondary sex ratio (1.043, p = 0.776), 1' APGAR score at birth (p = 0.544), gestational age at birth (p = 0.491) or birth weight (p = 0.257). CONCLUSIONS The observed differences between the rate of pregnancy complications in the two groups of pregnant women with and without latent infection with TG, did not reach a statistical significance.
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Petersen E, Meroni V, Vasconcelos-Santos DV, Mandelbrot L, Peyron F. Congenital toxoplasmosis: Should we still care about screening? Food Waterborne Parasitol 2022; 27:e00162. [PMID: 35782022 PMCID: PMC9249550 DOI: 10.1016/j.fawpar.2022.e00162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 11/18/2022] Open
Abstract
Prenatal systematic screening for congenital toxoplasmosis has been performed in Austria and France since 1975 and neonatal screening for congenital toxoplasmosis has been part of the New England Newborn screening program since 1986. In this narrative review we review the data leading up to the systematic screening programs in Austria and France, highlighting the main finding of the European Union funded research in the 1990s and early 2000s. Different descriptive studies of the effect of pre- or postnatal treatment are discussed. Toxoplasma gondii has different genetic lineages with different pathogenicity in humans. This means that results in areas with a low pathogenic lineage cannot be extrapolated to an area with highly pathogenic lineages. The importance of meat as a source of infection is discussed in the light of an increased prevalence of T.gondii in organic livestock production .
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Affiliation(s)
- Eskild Petersen
- Institute for Clinical Medicine, Faculty of Health Science, University of Aarhus, Denmark
- European Society for Clinical Microbiology and Infectious Diseases, Emerging Infections Task Force, Basel, Switzerland
- Correspondong author at: Institute for Clinical Medicine, University of Aarhus, Denmark.
| | - Valeria Meroni
- Molecular Medicine Department, University of Pavia, Pavia, Italy
| | | | - Laurent Mandelbrot
- Assistance Publique-Hôpitaux de Paris, Service de Gynécologie-Obstétrique, Hôpital Louis Mourier, Colombes, France; Université de Paris; Inserm IAME-U1137, Paris, France; FHU PREMA, Paris, France
| | - Francois Peyron
- Institut de Parasitologie et de Mycologie Médicale Hôpital de la Croix Rousse, Lyon, France
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7
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Rodrigues JP, Junior HFDA. Efficiency of a Single well IgG, IgM and IgA Anti T. gondii Fluorimetric Assay for Pre-natal Screening for Congenital Toxoplasmosis. J Fluoresc 2022; 32:661-667. [PMID: 35032281 DOI: 10.1007/s10895-022-02892-8] [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: 08/11/2021] [Accepted: 01/10/2022] [Indexed: 11/25/2022]
Abstract
Toxoplasmosis, worldwide protozoan disease, is usually benign, except when acute disease occurs in pregnant women, resulting in fetal infection with deaths or high morbidity after birth. Treatment blocks fetal infection or damage after infection, imposing a quick and effective diagnosis. Maternal infection is mostly asymptomatic thus regular serology are the main tool for detect seroconversion and acute infection in prenatal care. Screening test for specific anti T. gondii IgG, IgM and IgA must be quick, cheaper and available for the prenatal care. Fluorescent solid phase assays appears as a good alternative as they allow one well detection of IgG and IgM aside to allow high throughput in 384 wells. Here, we standardize and analyze a single well anti-T. gondii IgG, IgM and IgA immunosorbent fluorescent assay in a large sample of a public hospital. We construct conjugates for each immunoglobulin with specific fluorophores, which allows concomitant detection in a microplate fluorimeter, with stability and reproducibility, allowing cheaper 384 wells use. Tested in our 600 mother samples from a large public hospital, they presented the same reactivity as standard routine tests, but with adequate IgM and IgA screening, as adequately standardized in house ELISA, while the design of most commercial assays give false positive results. The few TFISA positive IgG, IgM and IgA samples also had low avidity IgG, confirming recent infection. TFISA will help a screening toxoplasmosis in pregnancy program in large cities, with , allowing testing large numbers of samples at low cost and must be considered for other serological purposes.
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Affiliation(s)
- Jaqueline Polizeli Rodrigues
- Lab. Protozoology, Faculdade de Medicina, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
- Pathology Department, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Heitor Franco de Andrade Junior
- Lab. Protozoology, Faculdade de Medicina, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil.
- Pathology Department, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.
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8
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Dubey JP, Murata FHA, Cerqueira-Cézar CK, Kwok OCH, Villena I. Congenital toxoplasmosis in humans: an update of worldwide rate of congenital infections. Parasitology 2021; 148:1406-1416. [PMID: 34254575 PMCID: PMC11010219 DOI: 10.1017/s0031182021001013] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 06/08/2021] [Accepted: 06/08/2021] [Indexed: 11/07/2022]
Abstract
The morbidity due to congenital toxoplasmosis in humans is very high. Most of these infected children are likely to develop symptoms of clinical toxoplasmosis. Sequelae in fetus resulting from Toxoplasma gondii infections in women who become infected with this parasite during pregnancy can be devastating and enormous efforts are directed in some countries to prevent these consequences. Here, an update on congenital toxoplasmosis in humans, especially the rate of congenital infections in humans worldwide, is provided. Although several countries have surveillance programmes, most information on the rate of congenital transmission is from France and Brazil. Because of compulsory national screening programme in France to detect and treat women with recently acquired T. gondii infection with anti-toxoplasma therapy, the rate of congenital transmission and the severity of disease in children are declining. Infections by this parasite are widely prevalent in Brazil. The severity of clinical toxoplasmosis in Brazilian children is very high and may be associated with the genetic characteristics of T. gondii isolates prevailing in animals and humans in Brazil. Virtually little or no information is available on this topic from China, India and other countries in Asia.
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Affiliation(s)
- J. P. Dubey
- United States Department of Agriculture, Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, Building 1001, Beltsville, MD20705-2350, USA
| | - F. H. A. Murata
- United States Department of Agriculture, Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, Building 1001, Beltsville, MD20705-2350, USA
| | - C. K. Cerqueira-Cézar
- United States Department of Agriculture, Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, Building 1001, Beltsville, MD20705-2350, USA
| | - O. C. H. Kwok
- United States Department of Agriculture, Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, Building 1001, Beltsville, MD20705-2350, USA
| | - I. Villena
- Parasitology, Mycology Laboratory, National Reference Centre for Toxoplasmosis, Toxoplasma Biological Resources Centre, CHU Reims and University Reims Champagne Ardenne ESCAPE EA7510, 51097, Reims, France
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Mejia-Oquendo M, Marulanda-Ibarra E, Gomez-Marin JE. Evaluation of the impact of the first evidence-based guidelines for congenital toxoplasmosis in Armenia (Quindío) Colombia: An observational retrospective analysis. LANCET REGIONAL HEALTH. AMERICAS 2021; 1:100010. [PMID: 36776756 PMCID: PMC9904040 DOI: 10.1016/j.lana.2021.100010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/22/2021] [Accepted: 05/25/2021] [Indexed: 11/17/2022]
Abstract
Background Colombia implemented the world's first evidence-based guidelines for congenital toxoplasmosis in 2013, no evaluation of its impact has been reported. Methods We reviewed the clinical charts of cases referred to the specialized consultation of the health care centre at Universidad del Quindío during an 18-year period (2001-2019), where the diagnosis criteria and the correlation between prenatal treatment and symptoms at birth were analysed. Additionally, we described the diagnosis criteria and treatment for mothers during pregnancy at a primary prenatal care centre in the city of Armenia during 2018. Institutional consent was obtained to review clinical charts. Findings At the referral centre, we found that before the implementation, 27.3% did not have prenatal diagnosis but after implementing the clinical practice guidelines, all mothers were diagnosed during pregnancy. In addition, we observed that prenatal treatment was associated with fewer symptoms and this improved significantly over time after implementing the guidelines. At the primary health care centre in 2018, we found that all mothers were diagnosed and treated, as recommended by the national guideline. Interpretation The national guideline has had a positive impact by improving early diagnosis and treatment of prenatal toxoplasmosis and reducing severe forms, as observed at the referral centre. Funding Colombian Ministry of Science.
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10
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Robinson E, de Valk H, Villena I, Le Strat Y, Tourdjman M. National perinatal survey demonstrates a decreasing seroprevalence of Toxoplasma gondii infection among pregnant women in France, 1995 to 2016: impact for screening policy. ACTA ACUST UNITED AC 2021; 26. [PMID: 33541484 PMCID: PMC7863230 DOI: 10.2807/1560-7917.es.2021.26.5.1900710] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background Toxoplasmosis during pregnancy can result in congenital anomalies or fetal death. Universal antenatal screening is recommended in France, a strategy in place since the 1970s. Aim We determined the seroprevalence of toxoplasmosis among pregnant women participating in the 2016 national perinatal survey (ENP), compared results with previous ENPs, and investigated factors associated with Toxoplasma gondii infection. Methods Using the 2016 ENP data, which contain sociodemographic and clinical information from all women giving birth during a one week period, we calculated adjusted prevalence ratios (aPR) by sociodemographic factors. Using available data from prior ENPs (1995, 2003 and 2010), we calculated age-standardised seroprevalences and aPRs for French women. Results In 2016, seroprevalence was 31.3% overall. Among French women, associations with increasing age (aPR: 1.54; 95% CI: 1.39–1.70), residence in Paris (aPR: 1.19; 95% CI: 1.08–1.31) or south-western regions (aPR: 1.19; 95% CI: 1.08–1.31), and higher professional status (aPR: 1.12; 95%CI 1.04–1.21) were observed. An association with increasing age was also evident among women from North Africa and sub-Saharan Africa. Age-standardised seroprevalence decreased from 55.0% in 1995 to 33.7% in 2016. Among French women, significant associations with age, Paris and south-west regions persisted across all ENPs. Conclusion Higher prevalences in older women may reflect a higher past risk of exposure while persistent geographical differences may reflect dietary or environmental differences. Toxoplasma seroprevalence among pregnant women continues to fall and will impact screening effectiveness. This warrants a comprehensive review to determine the appropriate future of prevention in France.
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Affiliation(s)
- Eve Robinson
- European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden.,French National Public Health Agency (Santé publique France), Saint-Maurice, France
| | - Henriette de Valk
- French National Public Health Agency (Santé publique France), Saint-Maurice, France
| | - Isabelle Villena
- National Reference Centre for Toxoplasmosis, Maison Blanche Hospital, University Reims Champagne-Ardenne, France
| | - Yann Le Strat
- French National Public Health Agency (Santé publique France), Saint-Maurice, France
| | - Mathieu Tourdjman
- French National Public Health Agency (Santé publique France), Saint-Maurice, France
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Deng H, Cummins R, Schares G, Trevisan C, Enemark H, Waap H, Srbljanovic J, Djurkovic-Djakovic O, Pires SM, van der Giessen JW, Opsteegh M. Mathematical modelling of Toxoplasma gondii transmission: A systematic review. Food Waterborne Parasitol 2021; 22:e00102. [PMID: 33364472 PMCID: PMC7753131 DOI: 10.1016/j.fawpar.2020.e00102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/27/2020] [Accepted: 12/04/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Toxoplasma gondii is a ubiquitous protozoan parasite that can infect virtually all warm-blooded animals. It is the causative agent of toxoplasmosis, a significant public health issue worldwide. Mathematical models are useful to study the transmission dynamics of T. gondii infection in different settings, and may be used to compare the effectiveness of prevention measures. METHODS To obtain an overview of existing mathematical models for transmission of T. gondii, a systematic review was undertaken. The review was conducted according to an a priori protocol and the results were reported according to the PRISMA guidelines. Specific search terms were developed and used in the search of three databases (Scopus, PubMed, and Embase). RESULTS In total, 484 unique records were retrieved from the systematic search. Among them, 15 studies that used mathematical models to study the transmission of T. gondii. These studies were categorized into four groups based on the primary aims: dynamics of transmission (n = 8), intervention (n = 5), spatial distribution (n = 1), and outbreak investigation (n = 1). CONCLUSIONS Considering the high disease burden caused by T. gondii, the number of studies using mathematical models to understand the transmission dynamics of this parasite and to evaluate the effectiveness of intervention measures was only 15. This systematic review provides an overview of existing mathematical models and identifies the data gaps for model building. The results from this study can be helpful for further development of mathematical models and improved understanding of the transmission dynamics of T. gondii infection.
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Affiliation(s)
- Huifang Deng
- Centre for Infectious Disease Control - Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment, 3720, BA, Bilthoven, the Netherlands
| | - Rachel Cummins
- Centre for Infectious Disease Control - Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment, 3720, BA, Bilthoven, the Netherlands
| | - Gereon Schares
- Institute of Epidemiology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald, Insel Riems, Germany
| | - Chiara Trevisan
- Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium
| | - Heidi Enemark
- Department of Animal Health and Food Safety, Norwegian Veterinary Institute, P.O. Box 750, Sentrum, NO-0106 Oslo, Norway
| | - Helga Waap
- Laboratório de Parasitologia, Instituto Nacional de Investigação Agrária e Veterinária, Av. da República, Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Jelena Srbljanovic
- Centre of Excellence for Food- and Vector-borne Zoonoses, National Reference Laboratory for Toxoplasmosis, Institute for Medical Research, University of Belgrade, Dr Subotića 4, Belgrade 11129, Serbia
| | - Olgica Djurkovic-Djakovic
- Centre of Excellence for Food- and Vector-borne Zoonoses, National Reference Laboratory for Toxoplasmosis, Institute for Medical Research, University of Belgrade, Dr Subotića 4, Belgrade 11129, Serbia
| | - Sara Monteiro Pires
- National Food Institute, Technical University of Denmark, Kemitorvet 201, 2800 Kgs. Lyngby, Denmark
| | - Joke W.B. van der Giessen
- Centre for Infectious Disease Control - Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment, 3720, BA, Bilthoven, the Netherlands
| | - Marieke Opsteegh
- Centre for Infectious Disease Control - Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment, 3720, BA, Bilthoven, the Netherlands
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12
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Halici-Ozturk F, Yakut K, Öcal FD, Erol A, Gökay S, Çağlar AT, Engin-Üstün Y, Ozgu-Erdinc AS. Seroprevalence of Toxoplasma gondii infections in Syrian pregnant refugee women in Turkey. Eur J Obstet Gynecol Reprod Biol 2020; 256:91-94. [PMID: 33188994 DOI: 10.1016/j.ejogrb.2020.11.002] [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: 09/17/2020] [Revised: 10/02/2020] [Accepted: 11/04/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Congenital infections in refugee women have been very rarely studied. The purpose of this study is to investigate the Toxoplasma gondii (T. gondii) seroprevalence in Syrian pregnant refugee women living in Turkey and to discuss the differences with Turkish pregnant women. STUDY DESIGN This is a retrospective cohort study including 752 pregnant refugee women and is based on the nine-year data of a reference public hospital in Ankara. RESULTS In the study group, T. gondii immunoglobulin G (IgG) and immunoglobulin M (IgM) seropositivity rates were 47 % and 0.4 %, respectively. Compared with a recent study conducted in the same center on Turkish native pregnant women, there was a significant difference in IgG seropositivity and no significant difference in IgM seropositivity. CONCLUSION Due to the seroprevalence difference between the indigenous and refugee groups, the Syrian refugee women has to be specifically considered in the prevention of congenital toxoplasmosis infections in Turkey.
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Affiliation(s)
- Filiz Halici-Ozturk
- Ankara City Hospital, Obstetrics and Gynecology Department, 06800, Ankara, Turkey.
| | - Kadriye Yakut
- Elazığ Fethi Sekin City Hospital, Obstetrics and Gynecology Department, 23280, Elazığ, Turkey
| | - Fatma Doğa Öcal
- Ankara City Hospital, Obstetrics and Gynecology Department, 06800, Ankara, Turkey
| | - Ahmet Erol
- Ankara City Hospital, Obstetrics and Gynecology Department, 06800, Ankara, Turkey
| | - Sibel Gökay
- Ankara City Hospital, Microbiology Department, 06800, Ankara, Turkey
| | - A Turhan Çağlar
- Etlik Zübeyde Hanım Women Health Care, Training and Research Hospital, Obstetrics and Gynecology Department, 06010, Ankara, Turkey
| | - Yaprak Engin-Üstün
- Etlik Zübeyde Hanım Women Health Care, Training and Research Hospital, Obstetrics and Gynecology Department, 06010, Ankara, Turkey
| | - A Seval Ozgu-Erdinc
- Ankara City Hospital, Obstetrics and Gynecology Department, 06800, Ankara, Turkey
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