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Latifi T, Kachooei A, Jalilvand S, Zafarian S, Roohvand F, Shoja Z. Correlates of immune protection against human rotaviruses: natural infection and vaccination. Arch Virol 2024; 169:72. [PMID: 38459213 DOI: 10.1007/s00705-024-05975-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 12/12/2023] [Indexed: 03/10/2024]
Abstract
Species A rotaviruses are the leading viral cause of acute gastroenteritis in children under 5 years of age worldwide. Despite progress in the characterization of the pathogenesis and immunology of rotavirus-induced gastroenteritis, correlates of protection (CoPs) in the course of either natural infection or vaccine-induced immunity are not fully understood. There are numerous factors such as serological responses (IgA and IgG), the presence of maternal antibodies (Abs) in breast milk, changes in the intestinal microbiome, and rotavirus structural and non-structural proteins that contribute to the outcome of the CoP. Indeed, while an intestinal IgA response and its surrogate, the serum IgA level, are suggested as the principal CoPs for oral rotavirus vaccines, the IgG level is more likely to be a CoP for parenteral non-replicating rotavirus vaccines. Integrating clinical and immunological data will be instrumental in improving rotavirus vaccine efficacy, especially in low- and middle-income countries, where vaccine efficacy is significantly lower than in high-income countries. Further knowledge on CoPs against rotavirus disease will be helpful for next-generation vaccine development. Herein, available data and literature on interacting components and proposed CoPs against human rotavirus disease are reviewed, and limitations and gaps in our knowledge in this area are discussed.
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Affiliation(s)
- Tayebeh Latifi
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, USA
| | - Atefeh Kachooei
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Somayeh Jalilvand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Saman Zafarian
- Department of Microbial Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Farzin Roohvand
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Zabihollah Shoja
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran.
- Research Center for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran.
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Lee T, Kang JM, Ahn JG, Thuy Truong DT, Nguyen TV, Ho TV, Thanh Ton HT, Le Hoang P, Kim MY, Yeom JS, Lee J. Prediction of effectiveness of universal rotavirus vaccination in Southwestern Vietnam based on a dynamic mathematical model. Sci Rep 2024; 14:4273. [PMID: 38383679 PMCID: PMC10881495 DOI: 10.1038/s41598-024-54775-6] [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: 06/15/2023] [Accepted: 02/16/2024] [Indexed: 02/23/2024] Open
Abstract
Vaccinating young children against rotavirus (RV) is a promising preventive strategy against rotavirus gastroenteritis (RVGE). We evaluated the relative risk reduction of RVGE induced by universal vaccination in Vietnam through dynamic model analysis. We developed an age-stratified dynamic Vaccinated-Susceptible-Infectious-Recovered-Susceptible model to analyze RV transmission and assess vaccine effectiveness (VE). We assumed 3 different vaccine efficacies: 55%, 70%, and 85%. For model calibration, we used a database of patients under 5 years of age admitted to Ho Chi Minh No.1 Hospital with RVGE between January 2013 and December 2018. Assuming a vaccination rate of 95%, the number of RVGE hospitalizations after 5 years from universal RV vaccination decreased from 92,502 cases to 45,626 with 85% efficacy, to 54,576 cases with 70% efficacy, and to 63,209 cases with 55% efficacy. Additionally, RVGE hospitalizations after 10 years decreased from 177,950 to 89,517 with 85% efficacy and to 121,832 cases with 55% efficacy. The relative risk reductions of RVGE after 10 years were 49.7% with 85% efficacy, 40.6% with 70% efficacy, and 31.5% with 55% efficacy. The VE was 1.10 times (95% CI, 1.01-1.22) higher in the 4-months to 1-year-old age group than in the other age groups (P = 0.038), when applying 85% efficacy with 95% coverage. In conclusion, despite its relatively lower efficacy compared to high-income countries, RV vaccination remains an effective intervention in Southwestern Vietnam. In particular, implementing universal RV vaccination with higher coverage would result in a decrease in RVGE hospitalizations among Vietnamese children under 5 years of age.
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Affiliation(s)
- Taeyong Lee
- School of Mathematics and Computing (Mathematics), Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Ji-Man Kang
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, South Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Jong Gyun Ahn
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, South Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Dung Thi Thuy Truong
- Department for Disease Control and Prevention, Pasteur Institute, Ho Chi Minh City, Vietnam
| | | | - Thang Vinh Ho
- Department for Disease Control and Prevention, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Ha Thi Thanh Ton
- Department of Gastroenterology, Children's Hospital 1, Ho Chi Minh City, Vietnam
| | - Phuc Le Hoang
- Department of Gastroenterology, Children's Hospital 1, Ho Chi Minh City, Vietnam
| | - Min Young Kim
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, South Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Joon-Sup Yeom
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.
| | - Jeehyun Lee
- School of Mathematics and Computing (Mathematics), Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.
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Characterization of Rotavirus Infection in Hospitalized Children under 5 with Acute Gastroenteritis 5 Years after Introducing the Rotavirus Vaccines in South Korea. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9111633. [PMID: 36360361 PMCID: PMC9688952 DOI: 10.3390/children9111633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 12/04/2022]
Abstract
We herein characterized rotavirus infection in hospitalized children under 5 years of age with gastroenteritis after introducing rotavirus vaccines in South Korea from 20 February 2012, to 31 March 2013. Enzyme-linked fluorescent immunoassay was performed to detect rotavirus antigens. G and P genotyping was performed using nested multiplex PCR. For the failed PCR samples, sequencing was conducted. We performed a test-negative case-control study to estimate vaccine effectiveness. Vaccine effectiveness was measured using a multivariate logistic regression model. Rotavirus was detected in 16 (13.2%) of the 121 patients, with a seasonal peak in April 2012. The dominant genotypes detected were G3P[8] (33.3%) and G4P[6] (26.7%), and vaccine effectiveness against rotavirus hospitalization was 84.9% [95% CI: 23.2−97.0] in the complete vaccinated group. A higher prevalence of rotavirus infection was observed among children with siblings than those without siblings (p < 0.001). Also, the presence of siblings was significantly associated with a history of nonvaccination (p < 0.001). In conclusion, the prevalence of rotavirus followed a decreasing trend, and there was no evidence of emergences of nonvaccine-type strains. Vaccine effectiveness against rotavirus hospitalization was 84.9%. Although children with siblings were more susceptible to rotavirus infection, they were less likely to receive vaccination against rotavirus.
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Truong DTT, Kang JM, Tran NTH, Phan LT, Nguyen HT, Ho TV, Nguyen TTT, Hoang PL, Pham TMT, Nguyen TD, Hoang TA, Luong QC, Pham QD, Ahn JG, Yoon S, Nguyen TV, Yeom JS. Rotavirus genotype trends from 2013 to 2018 and vaccine effectiveness in southern Vietnam. Int J Infect Dis 2021; 105:277-285. [PMID: 33596479 DOI: 10.1016/j.ijid.2021.02.047] [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: 12/20/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVES Rotavirus (RV) genotypes vary geographically, and this can affect vaccine effectiveness (VE). This study investigated the genotype distribution of RV and explored VE before introducing the RV vaccine to the national immunization programme in Vietnam. METHODS This hospital-based surveillance study was conducted at Children's Hospital 1, Ho Chi Minh City in 2013-2018. Stool samples and relevant data, including vaccination history, were collected from children aged <5 years who were hospitalized with gastroenteritis. RV was detected using enzyme immunoassays and then genotyped. Children aged ≥6 months were included in the VE analysis. RESULTS Overall, 5176 children were included in this study. RV was detected in 2421 children (46.8%). RV positivity decreased over the study period and was associated with age, seasonality, location and previous vaccination. Among 1105 RV-positive samples, G3P[8] was the most prevalent genotype (43.1%), followed by G8P[8] (19.7%), G1P[8] (12.9%) and G2P[4] (12.9%). Overall VE was 69.7% [95% confidence interval (CI) 53.3-80.6%] in fully vaccinated children and 58.6% (95% CI 44.1-69.4%) in children who had received at least one dose of RV vaccine. VE was highest for G3P[8] (95% CI 75.1-84.5%) and lowest for G2P[4] (95% CI 32.4-57.2%). CONCLUSIONS RV remains a major cause of acute gastroenteritis requiring hospitalization in southern Vietnam. The RV vaccine is effective, but its effectiveness varies with RV genotype.
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Affiliation(s)
- Dung Thi Thuy Truong
- Department for Disease Control and Prevention, Pasteur Institute, Ho Chi Minh City, Vietnam; Department of Global Health Security, Graduate School of Public Health, Yonsei University, Seoul, South Korea
| | - Ji-Man Kang
- Department of Paediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, South Korea; Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Ngoc Thi Hong Tran
- Department of Gastroenterology, Children's Hospital 1, Ho Chi Minh City, Vietnam
| | - Lan Trong Phan
- Directorial Board, Pasteur Institute, Ho Chi Minh City, Vietnam
| | | | - Thang Vinh Ho
- Department for Disease Control and Prevention, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Thao Thi Thanh Nguyen
- Microbiology and Immunology Department, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Phuc Le Hoang
- Department of Gastroenterology, Children's Hospital 1, Ho Chi Minh City, Vietnam
| | - Trang Mai Thuy Pham
- Microbiology and Immunology Department, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Thuy Dieu Nguyen
- Department for Disease Control and Prevention, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Thang Anh Hoang
- Department for Disease Control and Prevention, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Quang Chan Luong
- Department for Disease Control and Prevention, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Quang Duy Pham
- Planning Division, Pasteur Institute, Ho Chi Minh City, Vietnam; Training Centre, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Jong Gyun Ahn
- Department of Paediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, South Korea; Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Sangchul Yoon
- Department of Medical Humanities and Social Sciences, College of Medicine, Yonsei University, Seoul, South Korea
| | - Thuong Vu Nguyen
- Directorial Board, Pasteur Institute, Ho Chi Minh City, Vietnam.
| | - Joon-Sup Yeom
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.
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Kazimbaya KM, Chisenga CC, Simuyandi M, Phiri CM, Laban NM, Bosomprah S, Permar SR, Munsaka S, Chilengi R. In-vitro inhibitory effect of maternal breastmilk components on rotavirus vaccine replication and association with infant seroconversion to live oral rotavirus vaccine. PLoS One 2020; 15:e0240714. [PMID: 33170860 PMCID: PMC7654788 DOI: 10.1371/journal.pone.0240714] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 09/30/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Despite contributing to a significant reduction in rotavirus associated diarrhoea in highly burdened low- and middle-income countries, live attenuated, oral rotavirus vaccines have lower immunogenicity and efficacy in these settings in comparison to more developed countries. Breastmilk has been implicated among factors contributing to this lowered oral vaccine efficacy. We conducted in-vitro experiments to investigate the inhibitory effects of maternal antibody and other non-antibody components in breastmilk on rotavirus vaccine strain (Rotarix) multiplication in MA104 cell culture system and assessed associations with in-vivo vaccine seroconversion in vaccinated infants. METHODS Breastmilk samples were collected from mothers before routine rotavirus vaccination of their infant at 6 weeks of age. For each sample, whole breastmilk, purified IgA, purified IgG and IgG and IgA depleted breastmilk samples were prepared as exposure preparations. A 96 well microtitre plate was set up for each sample including a control in which only MA104 cells were grown as well as a virus control with MA104 cells and virus only. The outcome of interest was 50% inhibition dilution of each of the exposure preparations calculated as the titer at which 50% of virus dilution was achieved. Samples from 30 women were tested and correlated to vaccine seroconversion status of the infant. HIV status was also correlated to antiviral breastmilk proteins. RESULTS The mean 50% inhibitory dilution titer when whole breastmilk was added to virus infected MA104 cells was 14.3 (95% CI: 7.1, 22.7). Incubation with purified IgG resulted in a mean 50% inhibitory dilution of 5 (95%CI -1.6, 11.6). Incubating with purified IgA resulted in a mean 50% inhibitory dilution of 6.5 (95% CI -0.7, 13.7) and IgG and IgA depleted breastmilk did not yield any inhibition with a titer of 1.06 (95%CI 0.9, 1.2). Higher milk IgA levels contributed to a failure of infants to seroconvert. HIV was also not associated with any antiviral breastmilk proteins. DISCUSSION AND CONCLUSION Whole breastmilk and breastmilk purified IgG and IgA fractions showed inhibitory activity against the rotavirus vaccine Rotarix™ whilst IgA and IgG depleted breastmilk with non-antibody breastmilk fraction failed to show any inhibition activity in-vitro. These findings suggest that IgA and IgG may have functional inhibitory properties and indicates a possible mechanism of how mothers in rotavirus endemic areas with high titres of IgA and IgG may inhibit viral multiplication in the infant gut and would potentially contribute to the failure of their infants to serocovert. There was not association of HIV with either lactoferrin, lactadherin or tenascin-C concentrations.
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Affiliation(s)
- Katayi Mwila Kazimbaya
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
- Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | | | | | | | | | - Samuel Bosomprah
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
- Department of Biostatistics, School of Public Health, University of Ghana, Legon, Accra, Ghana
| | - Sallie R. Permar
- Department of Pediatrics, Human Vaccine Institute, Duke University, Durham, North Carolina, United States of America
| | - Sody Munsaka
- Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - Roma Chilengi
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
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Otero CE, Langel SN, Blasi M, Permar SR. Maternal antibody interference contributes to reduced rotavirus vaccine efficacy in developing countries. PLoS Pathog 2020; 16:e1009010. [PMID: 33211756 PMCID: PMC7676686 DOI: 10.1371/journal.ppat.1009010] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Rotavirus (RV) vaccine efficacy is significantly reduced in lower- and middle-income countries (LMICs) compared to high-income countries. This review summarizes current research into the mechanisms behind this phenomenon, with a particular focus on the evidence that maternal antibody (matAb) interference is a contributing factor to this disparity. All RV vaccines currently in use are orally administered, live-attenuated virus vaccines that replicate in the infant gut, which leaves their efficacy potentially impacted by both placentally transferred immunoglobulin G (IgG) and mucosal IgA Abs conferred via breast milk. Observational studies of cohorts in LMICs demonstrated an inverse correlation between matAb titers, both in serum and breast milk, and infant responses to RV vaccination. However, a causal link between maternal humoral immunity and reduced RV vaccine efficacy in infants has yet to be definitively established, partially due to limitations in current animal models of RV disease. The characteristics of Abs mediating interference and the mechanism(s) involved have yet to be determined, and these may differ from mechanisms of matAb interference for parenterally administered vaccines due to the contribution of mucosal immunity conferred via breast milk. Increased vaccine doses and later age of vaccine administration have been strategies applied to overcome matAb interference, but these approaches are difficult to safely implement in the setting of RV vaccination in LMICs. Ultimately, the development of relevant animal models of matAb interference is needed to determine what alternative approaches or vaccine designs can safely and effectively overcome matAb interference of infant RV vaccination.
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Affiliation(s)
- Claire E. Otero
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, North Carolina, United States of America
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Stephanie N. Langel
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, North Carolina, United States of America
- Department of Pediatrics, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Maria Blasi
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, North Carolina, United States of America
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Sallie R. Permar
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, North Carolina, United States of America
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, United States of America
- Department of Pediatrics, Duke University Medical Center, Durham, North Carolina, United States of America
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Boix-Amorós A, Collado MC, Van't Land B, Calvert A, Le Doare K, Garssen J, Hanna H, Khaleva E, Peroni DG, Geddes DT, Kozyrskyj AL, Warner JO, Munblit D. Reviewing the evidence on breast milk composition and immunological outcomes. Nutr Rev 2019; 77:541-556. [PMID: 31111150 DOI: 10.1093/nutrit/nuz019] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
A large number of biologically active components have been found in human milk (HM), and in both human and animal models, studies have provided some evidence suggesting that HM composition can be altered by maternal exposures, subsequently influencing health outcomes for the breastfed child. Evidence varies from the research studies on whether breastfeeding protects the offspring from noncommunicable diseases, including those associated with immunological dysfunction. It has been hypothesized that the conflicting evidence results from HM composition variations, which contain many immune active molecules, oligosaccharides, lactoferrin, and lysozyme in differing concentrations, along with a diverse microbiome. Determining the components that influence infant health outcomes in terms of both short- and long-term sequelae is complicated by a lack of understanding of the environmental factors that modify HM constituents and thereby offspring outcomes. Variations in HM immune and microbial composition (and the differing infantile responses) may in part explain the controversies that are evidenced in studies that aim to evaluate the prevalence of allergy by prolonged and exclusive breastfeeding. HM is a "mixture" of immune active factors, oligosaccharides, and microbes, which all may influence early immunological outcomes. This comprehensive review provides an in-depth overview of existing evidence on the studied relationships between maternal exposures, HM composition, vaccine responses, and immunological outcomes.
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Affiliation(s)
- Alba Boix-Amorós
- Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain
- In-VIVO Global Network, an affiliate of the World Universities Network (WUN), New York, New York, United States
| | - Maria Carmen Collado
- Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain
- In-VIVO Global Network, an affiliate of the World Universities Network (WUN), New York, New York, United States
| | - Belinda Van't Land
- Department of Immunology, Danone Nutricia Research, Utrecht, the Netherlands
- Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Anna Calvert
- Paediatric Infectious Diseases Research Group, St George's University of London, London, United Kingdom
| | - Kirsty Le Doare
- Paediatric Infectious Diseases Research Group, St George's University of London, London, United Kingdom
- Imperial College London, London, United Kingdom
- Public Health England, Porton Down, United Kingdom, and the MRC Unit, Fajara, Gambia
| | - Johan Garssen
- Department of Immunology, Danone Nutricia Research, Utrecht, the Netherlands
- Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | | | - Ekaterina Khaleva
- In-VIVO Global Network, an affiliate of the World Universities Network (WUN), New York, New York, United States
- University of Southampton, Southampton, UK
| | - Diego G Peroni
- In-VIVO Global Network, an affiliate of the World Universities Network (WUN), New York, New York, United States
- Department of Clinical and Experimental Medicine, Section of Paediatrics, University of Pisa, Pisa, Italy
| | - Donna T Geddes
- In-VIVO Global Network, an affiliate of the World Universities Network (WUN), New York, New York, United States
- School of Molecular Sciences, the University of Western Australia, Perth, Australia
| | - Anita L Kozyrskyj
- In-VIVO Global Network, an affiliate of the World Universities Network (WUN), New York, New York, United States
- Department of Pediatrics, Department of Obstetrics & Gynecology, Faculty of Medicine & Dentistry, School of Public Health, University of Alberta, Alberta, Canada
| | - John O Warner
- In-VIVO Global Network, an affiliate of the World Universities Network (WUN), New York, New York, United States
- Imperial College London, London, United Kingdom
- National Institute for Health Research, Collaboration for Leadership in Applied Health Research and Care for NW London, London, United Kingdom
| | - Daniel Munblit
- In-VIVO Global Network, an affiliate of the World Universities Network (WUN), New York, New York, United States
- Imperial College London, London, United Kingdom
- Department of Pediatrics, Sechenov University, Moscow, Russia, and the Solov'ev Research and Clinical Center for Neuropsychiatry, Moscow, Russia
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Esposito S, Pugni L, Mosca F, Principi N. Rotarix® and RotaTeq® administration to preterm infants in the neonatal intensive care unit: Review of available evidence. Vaccine 2018; 36:5430-5434. [DOI: 10.1016/j.vaccine.2017.10.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 08/19/2017] [Accepted: 10/05/2017] [Indexed: 11/25/2022]
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Mwila K, Chilengi R, Simuyandi M, Permar SR, Becker-Dreps S. Contribution of Maternal Immunity to Decreased Rotavirus Vaccine Performance in Low- and Middle-Income Countries. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2017; 24:e00405-16. [PMID: 27847365 PMCID: PMC5216432 DOI: 10.1128/cvi.00405-16] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The role of maternal immunity, received by infants either transplacentally or orally from breast milk, in rotavirus vaccine (RV) performance is evaluated here. Breastfeeding withholding has no effect on vaccine responses, but higher levels of transplacental rotavirus-specific IgG antibody contribute to reduced vaccine seroconversion. The gaps in knowledge on the factors associated with low RV efficacy in low- and middle-income countries (LMIC) remain, and further research is needed to shed more light on these issues.
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Affiliation(s)
- Katayi Mwila
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Roma Chilengi
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
- Department of Family Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Sallie R Permar
- Department of Pediatrics, Human Vaccine Institute, Duke University, Durham, North Carolina, USA
| | - Sylvia Becker-Dreps
- Department of Family Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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O’Ryan M, Giaquinto C, Benninghoff B. Human rotavirus vaccine (Rotarix): focus on effectiveness and impact 6 years after first introduction in Africa. Expert Rev Vaccines 2015; 14:1099-112. [DOI: 10.1586/14760584.2015.1059282] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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