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Barqawi HJ, Samara KA, Hassan MS, Amawi FB. Adult Vaccination in the United Arab Emirates—A Physicians' Knowledge and Knowledge Sources Study. Front Public Health 2022; 10:865759. [PMID: 35493373 PMCID: PMC9051022 DOI: 10.3389/fpubh.2022.865759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/04/2022] [Indexed: 11/27/2022] Open
Abstract
Background A lack of knowledge on adult vaccination has been documented among physicians. They play a critical role in promoting adult vaccines. This study aimed to review the status of adult vaccination in the United Arab Emirates (UAE) and evaluate physicians' knowledge and knowledge sources regarding adult vaccines. Methods Local, regional, and global adult vaccination guidelines were reviewed. A 40-item questionnaire was used to collect data from physicians from June to October 2020, using convenience and snowball sampling. Knowledge score was calculated, and predictors identified using Mann–Whitney U and Kruskal–Wallis H-tests. Ordinary Least Squares regression was used for Multivariate Analysis. Results A total of 500 responses were included. A quarter were internists, and another quarter were family physicians. Fifty-seven percent were medical interns and residents. Both perceived and actual knowledge of adult vaccination were low. Bivariate analysis showed knowledge depending on department, level of training, workplace, and perceived knowledge. All remained significant after multivariable regression except workplace. International and local guidelines were the most common knowledge sources. Forty-two percent were unable to access the local guidelines. Conclusions Physicians' knowledge was poor and local guidelines were not clear or easily accessible. Participants were highly receptive to guidance and practice with adult vaccines.
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Affiliation(s)
- Hiba J. Barqawi
- Department of Clinical Sciences, College of Medicine, Sharjah, United Arab Emirates
- *Correspondence: Hiba J. Barqawi
| | - Kamel A. Samara
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Mahmoud S. Hassan
- University Hospitals Coventry and Warwickshire NHS Trust, Conventry, United Kingdom
| | - Firas B. Amawi
- Dr. Sulaiman Al Habib Hospital, Dubai, United Arab Emirates
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2
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Macina D, Evans KE. Bordetella pertussis in School-Age Children, Adolescents, and Adults: A Systematic Review of Epidemiology, Burden, and Mortality in the Middle East. Infect Dis Ther 2021; 10:719-738. [PMID: 33905101 PMCID: PMC8116454 DOI: 10.1007/s40121-021-00440-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/24/2021] [Indexed: 10/13/2023] Open
Abstract
Despite modern diphtheria-tetanus-pertussis (DTP) vaccines and high vaccine coverage, a resurgence of pertussis (whooping cough) has been observed globally. In North America and Europe, high vaccine coverage in children has led to a shift in the age-specific peak incidence of infection away from infants and towards older children and adolescents. However, much less is known about the prevalence of pertussis in older children and adults in the Middle East. A systematic search of MEDLINE, EMBASE, and BIOSIS was undertaken to identify studies published between 1 January 1990 and 17 June 2019, with information on pertussis epidemiology, burden of illness, and mortality in school-aged children, adolescents, and adults in the Middle East. Studies identified for inclusion were reviewed narratively because a statistical comparison was not possible because of the mix of methodologies used. The results showed that surveillance data are weak or missing in most Middle Eastern countries, and among 24 epidemiological studies identified, most were from Iran (14), Israel (4), and Turkey (3), with single studies from the United Arab Emirates and Iraq. Despite various surveillance periods, clinical definitions, and antibody cut-off values used across the studies, the reported seroprevalence of pertussis antibodies suggested that adolescents and adults are commonly exposed to pertussis in the community and that vaccine-acquired immunity from childhood wanes. Few countries in the Middle East include a diphtheria-tetanus-acellular pertussis (Tdap) booster for adolescents on the national schedule. Israel was the only country with epidemiological data in a population that received Tdap, and the study showed that after the introduction of the adolescent booster dose, there was decrease in pertussis among children aged 5–14 years. To conclude, results from the Middle East suggest that in common with other regions, pertussis is widely circulating and that it might be shifting towards older age groups.
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Affiliation(s)
- Denis Macina
- Global Medical, Sanofi Pasteur, 14 Espace Henry Vallée, 69007, Lyon, France.
| | - Keith E Evans
- inScience Communications, Chowley Oak Business Park, Chowley Oak Lane, Tattenhall, Cheshire, UK
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Adekola HA, Abdullahi IN, Emeribe AU, Faruku N, Uzairue L, Adeyemi Billyrose OM, Shuwa HA. Sero-survey of measles virus antibodies among symptomatic children attending Abuja Teaching Hospital, Nigeria. GMS HYGIENE AND INFECTION CONTROL 2021; 16:Doc04. [PMID: 33643771 PMCID: PMC7894129 DOI: 10.3205/dgkh000375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background: Nigeria is one of the countries with a high prevalence of measles outbreak in children under 5 years old, despite a history of vaccination. This study aims to determine the prevalence of anti-measles virus IgM and IgG among children under 5 years attending the University of Abuja Teaching Hospital (UATH), Gwagwalada, FCT Abuja, Nigeria. Materials and methods: Whole blood was collected, centrifuged, and serum anti-IgM and anti-IgG against measles virus was analysed using ELISA. Sociodemographic variables and vaccination history of subjects were obtained by interview-based questionnaires. Results: The overall anti-Measles virus IgG and IgM seroprevalences were 29.2% and 14.6%, respectively. The prevalence of measles IgG was significantly associated with the parent’s employment status (X2=11.67, p=0.008). However, the prevalence of measles virus IgM was significantly associated with children’s age (X2=16.62, p=0.002), parents’ employment status and children’s vaccination status (X2 =7.72, p=0.02). Conclusion: A majority of study participants were not immunised against measles, and a significant number of participants had serological evidence of acute measles virus infection. There is a need for more concerted and massive measles vaccination of children.
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Affiliation(s)
| | - Idris Nasir Abdullahi
- Department of Medical Laboratory Science, Faculty of Allied Health Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Anthony Uchenna Emeribe
- Department of Medical Laboratory Science, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Nigeria
| | - Nafiu Faruku
- Department of Medical Laboratory Science, Faculty of Allied Health Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Leonard Uzairue
- Department of Microbiology, Federal University of Agriculture, Abeokuta, Nigeria
| | | | - Halima Ali Shuwa
- University Health Center, Faculty of Health and Medical Sciences, Federal University, Dutse, Nigeria
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4
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Hefele L, Syphan S, Xayavong D, Homsana A, Kleine D, Chanthavilay P, Nouanthong P, Xaydalasouk K, Phathammavong O, Billamay S, Xeuatvongsa A, Reinharz D, Muller CP, Black AP. Seroprotection at Different Levels of the Healthcare System After Routine Vaccination With Diphtheria-Tetanus-Pertussis whole cell-Hepatitis B-Haemophilus influenzae Type B in Lao People's Democratic Republic. Clin Infect Dis 2020; 69:2136-2144. [PMID: 30778522 PMCID: PMC6880335 DOI: 10.1093/cid/ciz143] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/13/2019] [Indexed: 01/23/2023] Open
Abstract
Background The Lao People’s Democratic Republic continues to sustain a considerable burden of vaccine-preventable diseases because of incomplete vaccine coverage and weak vaccine responses. We have assessed seroconversion after routine vaccination with the pentavalent vaccine to capture weaknesses of vaccine management at the different levels of the healthcare system. Methods A total of 1151 children (aged 8–28 months) with 3 documented doses of the pentavalent vaccine delivered at central hospitals in Vientiane and the provincial hospital, 3 district hospitals, and 10 health centers in Bolikhamxay province were enrolled. Sociodemographic information was collected with a standardized questionnaire. Serum samples were analyzed for antibodies against vaccine components, and bivariate and multivariable analyses were performed to identify risk factors for low vaccine responses. Results Seroprotection rates at the provincial, district, and health center level were as high as in central hospitals, but seroprotection rates in areas covered by remote health centers were significantly lower. Protective levels also rapidly decreased with age at sampling. Seroprotection rates in Bolikhamxay against the different components reached 70%–77% and were up to 20% higher than in previous studies in the same region; 18.8% more children received the hepatitis B vaccine birth dose and the hepatitis B virus infection rate was 4 times lower. Conclusions Vaccine immunogenicity has dramatically improved in a central province, likely due to training and investment in the cold chain. Nevertheless, there remains a need to focus on the “last mile” in remote areas were most children are vaccinated through outreach activities.
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Affiliation(s)
- Lisa Hefele
- Lao-Lux Laboratory, Institut Pasteur du Laos, Vientiane, Lao People's Democratic Republic.,Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Grand-Duchy of Luxembourg
| | - Sengdavanh Syphan
- Institut de la Francophonie pour la Médecine Tropicale, Vientiane, Lao People's Democratic Republic
| | - Dalouny Xayavong
- Institut de la Francophonie pour la Médecine Tropicale, Vientiane, Lao People's Democratic Republic
| | - Anousin Homsana
- Institut de la Francophonie pour la Médecine Tropicale, Vientiane, Lao People's Democratic Republic
| | - Daria Kleine
- Lao-Lux Laboratory, Institut Pasteur du Laos, Vientiane, Lao People's Democratic Republic.,Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Grand-Duchy of Luxembourg
| | - Phetsavanh Chanthavilay
- Institut de la Francophonie pour la Médecine Tropicale, Vientiane, Lao People's Democratic Republic
| | | | - Kinnaly Xaydalasouk
- Lao-Lux Laboratory, Institut Pasteur du Laos, Vientiane, Lao People's Democratic Republic
| | | | - Somxay Billamay
- Children Hospital, Vientiane, Lao People's Democratic Republic
| | - Anonh Xeuatvongsa
- Expanded Programme on Immunisation, Vientiane, Lao People's Democratic Republic
| | - Daniel Reinharz
- Institut de la Francophonie pour la Médecine Tropicale, Vientiane, Lao People's Democratic Republic
| | - Claude P Muller
- Lao-Lux Laboratory, Institut Pasteur du Laos, Vientiane, Lao People's Democratic Republic.,Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Grand-Duchy of Luxembourg.,Laboratoire national de santé, Dudelange, Grand-Duchy of Luxembourg
| | - Antony P Black
- Institut de la Francophonie pour la Médecine Tropicale, Vientiane, Lao People's Democratic Republic
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Ng Y, Chua LAV, Cui L, Ang LW, Tee NWS, Lin RTP, Ma S, Lee VJM. Seroprevalence of vaccine-preventable diseases among children and adolescents in Singapore: Results from the National Paediatric Seroprevalence Survey 2018. Int J Infect Dis 2019; 92:234-240. [PMID: 31843668 DOI: 10.1016/j.ijid.2019.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES The Ministry of Health (MOH), Singapore, conducted the National Paediatric Seroprevalence Survey 2018 (NPSS 2018) to estimate the latest immunity levels against measles, rubella, varicella, diphtheria, tetanus and hepatitis B, and the seroprevalence of chronic hepatitis B virus (HBV) carriage in children and adolescents in Singapore. METHODS The survey involved prospective collection of residual sera from 1,200 children and adolescents aged 1-17 years in two public acute hospitals. Enzyme-linked immunosorbent assays (EIA) or plague reduction neutralisation tests (PRNT) were used to determine the seroprevalence of the vaccine-preventable diseases. RESULTS Overall prevalence of measles and rubella antibodies among Singaporean children and adolescents aged 1-17 years were 98.2% (95% CI: 91.2-98.8%) and 94.8% (95% CI: 93.4-95.9%) respectively. 97.1% (95% CI: 96.0-97.9%) of subjects had at least basic protection against diphtheria, while 89.3% (95% CI: 87.5-91.0%) were protected against tetanus. The prevalence of chronic HBV carriage was 0.4% (95% CI: 0.2-1.0%), while 45.7% (95% CI: 42.9-48.5%) were immune against HBV. The seroprevalence for varicella antibodies was 52.9% (95% CI: 50.1-55.7%). Concordance between vaccination status and seroprevalence was observed for measles, rubella, diphtheria and tetanus. CONCLUSION Singapore's children and adolescents are well-protected against measles, rubella, diphtheria and tetanus. Continual efforts in ensuring high vaccination coverage should be sustained.
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Affiliation(s)
- Yixiang Ng
- Epidemiology and Disease Control Division, Ministry of Health, Singapore
| | - Lily Ai Vee Chua
- Epidemiology and Disease Control Division, Ministry of Health, Singapore.
| | - Lin Cui
- National Public Health Laboratory, National Centre for Infectious Diseases, Singapore
| | - Li Wei Ang
- National Public Health and Epidemiology Unit, National Centre for Infectious Diseases, Singapore
| | - Nancy Wen Sim Tee
- National Public Health Laboratory, National Centre for Infectious Diseases, Singapore
| | - Raymond Tzer Pin Lin
- National Public Health Laboratory, National Centre for Infectious Diseases, Singapore
| | - Stefan Ma
- Epidemiology and Disease Control Division, Ministry of Health, Singapore
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Narchi H, Osman W, George JA, Almekhaini LA, Souid AK, Alsuwaidi AR. Pertussis seronegativity in pregnant women in the city of Al Ain, United Arab Emirates. Int J Infect Dis 2019; 89:96-101. [PMID: 31493522 DOI: 10.1016/j.ijid.2019.08.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/21/2019] [Accepted: 08/29/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE As the current recommendation of administering Tdap (tetanus-diphtheria-acellular pertussis) to all pregnant women has not been widely implemented in the United Arab Emirates (UAE), we aimed to ascertain the prevalence of pertussis seronegativity during pregnancy. METHODS IgG antibodies against Bordetella pertussis toxin (PT) were measured in 213 women attending the antenatal clinic at Oasis hospital, Al Ain, UAE. Results were compared by maternal age, nationality and gestational age with the Kruskal-Wallis test for IgG-PT levels and the Chi-squared test for serology status. RESULTS The mean age±SD of the participants was 30.4±5.6 years, mean gestational age±SD of 25.5±3.3 weeks. Serum concentration of IgG-PT <10IU/ml were found in 160 out of 213 women (75%; 95% confidence interval 69%, 81%). There was no significant difference in the geometric mean of serum IgG-PT concentration across maternal age (P=0.80) or nationality (P=0.90). There were no differences in the prevalence of seronegativity with maternal age (P=0.65) or nationality (P=0.90). CONCLUSION With a high prevalence of pertussis seronegativity in pregnant women, there is a potential benefit of introducing pertussis vaccination during pregnancy into our national immunization program.
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Affiliation(s)
- Hassib Narchi
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, United Arab Emirates.
| | - Wafa Osman
- Department of Obstetrics and Gynecology, Oasis Hospital, Al Ain, United Arab Emirates.
| | - Junu A George
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, United Arab Emirates.
| | - Lolowa A Almekhaini
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, United Arab Emirates.
| | - Abdul-Kader Souid
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, United Arab Emirates.
| | - Ahmed R Alsuwaidi
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, United Arab Emirates.
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Al Kaabi N, Al Olama FMAS, Al Qaseer M, Al Ubaidani I, Dinleyici EC, Hayajneh WA, Bizri AR, Loulou M, Ndao T, Wolfson LJ. The clinical and economic burden of varicella in the Middle East: a systematic literature review. Hum Vaccin Immunother 2019; 16:21-32. [PMID: 31373864 PMCID: PMC7012098 DOI: 10.1080/21645515.2019.1638726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
This systematic literature review was conducted to better understand the epidemiology and burden of varicella across the Middle East, gain insight into the evidence to support using universal varicella vaccination (UVV), and identify potential data gaps. Both epidemiology and economic data on the burden of varicella were limited and varied significantly. Most of the data focussed on varicella burden in the absence of a UVV program. In the absence of UVV, varicella incidence is increasing across this region with varicella infection associated with substantial morbidity. Although limited, data on the impact of vaccination at a population level indicated UVV programs reduce varicella incidence and hospitalizations, in line with global experience. Further research and action are needed to better understand varicella epidemiology in the Middle East, increase awareness and understanding in the region, and provide local data to support national public-health decisions regarding the implementation of UVV programs.
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Affiliation(s)
- Nawal Al Kaabi
- Department of Pediatrics, Sheikh Khalifa Medical City, Abu Dhabi, UAE
| | | | | | - Idris Al Ubaidani
- Department of Communicable Disease Surveillance & Control, Directorate General of Health Affairs, Ministry of Health HQ, Muscat, Sultanate of Oman
| | - Ener Cagri Dinleyici
- Department of Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Wail Ahmad Hayajneh
- Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Abdul Rahman Bizri
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | | | | | - Lara J Wolfson
- Merck & Co., Inc. Center for Observational and Real-World Evidence (CORE), Kenilworth, NJ, USA
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8
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Haban H, Benchekroun S, Sadeq M, Tajounte L, Ahmed HJ, Benjouad A, Amzazi S, Oumzil H, Elharti E. Seroprevalence of measles vaccine antibody response in vertically HIV-infected children, in Morocco. BMC Infect Dis 2018; 18:680. [PMID: 30567502 PMCID: PMC6299968 DOI: 10.1186/s12879-018-3590-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/05/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The widespread use of an effective and safe vaccine to measles has substantially decreased morbidity and mortality from this epidemic. Nevertheless, HIV-infected children vaccinated against measles may develop an impaired vaccine response and remain susceptible to this disease. In Morocco, infants are routinely vaccinated against measles, regardless of their HIV serostatus. An evaluation of the immunization of these children may be of paramount importance to implement timely measures aimed at preventing measles transmission. METHODS In this study, we have enrolled 114 children vaccinated against measles, 50 children prenatally infected with HIV and 64 HIV-uninfected children. For all children, blood samples were taken to measure anti-measles IgG by EIA and CD4 count by flow cytometry. Additionally, HIV viral load was determined by automated real time PCR, for HIV-infected children. RESULTS The seroprotective rate of IgG anti-measles antibodies was significantly lower among HIV-infected children (26%) compared with HIV-uninfected children (73%) (p < 0.001). Within HIV-infected children group, the comparison of variables between children without seroprotective seroconversion to measles and those with seroprotective immunity, displayed that sex and age were not statistically different, p > 0.999 and p = 0.730, respectively. However, CD4 count was lower among children with negative serostatus to measles (23% versus 32%, p < 0.001). Furthermore, viral load was higher, with 2.91 log10 ± 2.24 versus 1.7 log10 ± 1.5 (p = 0.042). Finally, 62% of children with a negative vaccine response to measles were under HAART therapy, versus 92% (p = 0.008). CONCLUSION The majority of HIV-infected children vaccinated against measles develop a suboptimal seroprotective titer, and therefore remain at risk for this highly infectious disease. These data in combination with international recommendations, including recent WHO guidance on vaccination of HIV-infected children, suggest there is a need for national measures to prevent these children from measles.
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Affiliation(s)
- Houda Haban
- Department of Virology, National Reference Laboratory for HIV, National Institute of Hygiene, Rabat, Morocco
- Immunology-Biochemistry Laboratory, Faculty of Sciences, University Mohamed Vth, Rabat, Morocco
| | - Soumia Benchekroun
- Pediatric Infectious Disease Clinic, Ibn Sina University Hospital, Rabat, Morocco
| | - Mina Sadeq
- Environmental Epidemiology Unit, National Institute of Hygiene, Rabat, Morocco
| | - Latifa Tajounte
- Department of Virology, National Reference Laboratory for Measles, National Institute of Hygiene, Rabat, Morocco
| | | | | | - Said Amzazi
- Immunology-Biochemistry Laboratory, Faculty of Sciences, University Mohamed Vth, Rabat, Morocco
| | - Hicham Oumzil
- Department of Virology, National Reference Laboratory for HIV, National Institute of Hygiene, Rabat, Morocco
| | - Elmir Elharti
- Department of Virology, National Reference Laboratory for HIV, National Institute of Hygiene, Rabat, Morocco
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Alsuwaidi AR, Al-Mekaini LA, Kamal SM, Narchi H, Souid AK. Seroprevalence of influenza A and B viruses among unvaccinated children in the United Arab Emirates: a cross-sectional study. BMC Res Notes 2017; 10:379. [PMID: 28797306 PMCID: PMC5553759 DOI: 10.1186/s13104-017-2720-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 07/29/2017] [Indexed: 11/10/2022] Open
Abstract
Background Young children are at increased risk of severe influenza disease and, thus, are good candidates for receiving annual vaccination. Nevertheless, the influenza vaccine is infrequently given to children in our region. The primary objectives of this study are to monitor the serologic immunities against influenza A and B viruses, and provide pediatric data that support the need for influenza vaccination in the community. Methods Influenza A and B virus-specific IgG antibodies were measured in 294 children (median age 4.1 years; range 1.9–12.5 years) between July 2014 and September 2015. Results The percentage of children who were seropositive for influenza A IgG was 15.8%, equivocal 7.4%, and negative 76.8%. The corresponding values for influenza B IgG were 31.3, 9.6, and 59.1%, respectively. There was a higher seropositivity rate for influenza B than for influenza A in all age groups. The percentage of children who were seropositive for either influenza A or B IgG was 27.9% and for both was only 2.7%. Conclusions Most of the studied children are serologically naïve and, thus, are likely to acquire primary influenza disease. A national policy that endorses childhood influenza vaccination is highly advisable.
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Affiliation(s)
- Ahmed R Alsuwaidi
- Department of Pediatrics, United Arab Emirates University, P.O. Box 17666, Al Ain, UAE.
| | - Lolowa A Al-Mekaini
- Department of Pediatrics, United Arab Emirates University, P.O. Box 17666, Al Ain, UAE
| | - Salwa M Kamal
- Ambulatory Healthcare Services, Abu Dhabi Health Services Company (SEHA), Abu Dhabi, UAE
| | - Hassib Narchi
- Department of Pediatrics, United Arab Emirates University, P.O. Box 17666, Al Ain, UAE
| | - Abdul-Kader Souid
- Department of Pediatrics, United Arab Emirates University, P.O. Box 17666, Al Ain, UAE
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10
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Wang X, Ma M, Hui Z, Terry PD, Zhang Y, Su R, Wang M, Gu W, Li L. Seroprevalence of Measles Antibodies and Predictors for Seropositivity among Chinese Children. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:E605. [PMID: 28587279 PMCID: PMC5486291 DOI: 10.3390/ijerph14060605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/22/2017] [Accepted: 06/02/2017] [Indexed: 11/17/2022]
Abstract
Background: Supplementary measles immunization has been implemented since 2010 throughout China, yet few studies have reported its effect in the northwest regions. Methods: A cross-sectional study was conducted among children aged 2 to 4 years old (n = 755) from February to September 2014 in 25 towns of Qian County, Shaanxi Province. Blood samples were analyzed for measles antibodies using enzyme-linked immunosorbent immunoglobulin G (IgG) assays. Socio-demographic factors were assessed by questionnaire. Data on vaccine dose were collected from town medical records. Univariate and logistic regression analyses were used to determine factors associated with measles antibody seropositivity. Results: Measles antibody seroprevalence was 91.13% (95% CI: 89.52-92.83) in our sample. Compared with children whose mother's highest education was primary school, seroprevalence was higher in children whose maternal education was middle school (adjusted OR: 1.4, 95% CI: 0.7-2.8), high school (adjusted OR: 2.4, 95% CI: 1.3-7.7), and college/university (adjusted OR: 2.9, 95% CI: 1.2-9.3). Vaccine dose was positively associated with seropositivity. Conclusions: Measles seroprevalence is high in China and is associated with the mother's education and vaccine dose.
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Affiliation(s)
- Xiaoqin Wang
- Department of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
| | - Mei Ma
- Department of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
| | - Zhaozhao Hui
- Department of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
| | - Paul D Terry
- Department of Medicine, University of Tennessee Medical Center, Knoxville, TN 37920, USA.
| | - Yue Zhang
- Department of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
| | - Rui Su
- Center for Disease Control and Prevention in Qian County, Xianyang 713300, China.
| | - Mingxu Wang
- Department of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
| | - Wei Gu
- Department of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
| | - Ling Li
- Department of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
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