Modeling the Long-term Antibody Response and Duration of Immune Protection Induced by an Inactivated, Preservative-free Hepatitis A Vaccine (Healive) in Children

Publication date: July 2020Source: Biomedical and Environmental Sciences, Volume 33, Issue 7Author(s): Yong Pei YU, Jiang Ting CHEN, Zhi Wei JIANG, Ling WANG, Cheng Kai YU, Xiao Yan YAN, Chen YAO, Jie Lai XIA
Source: Biomedical and Environmental Sciences - Category: Biomedical Science Source Type: research

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Abstract U.S. residents traveling internationally to regions with increased risk of infectious diseases infrequently seek pretravel health care. First- and second-generation immigrants traveling to their countries of origin and visiting friends and relatives (VFRs) have increased risk of certain infectious diseases and are more likely to participate in high-risk activities. In an online survey of 994 U.S. residents with two foreign-born parents who went on at least one international trip to an at-risk country (defined as having a typhoid vaccine recommendation) in the prior 3 years, respondents were questioned abo...
Source: The American Journal of Tropical Medicine and Hygiene - Category: Tropical Medicine Authors: Tags: Am J Trop Med Hyg Source Type: research
AbstractIntroductionHigh prevalence of hepatitis  B virus (HBV) infection among pregnant women is the primary source of infection for their children and the general population. Mother-to-child transmission (MTCT) is the primary mode of transmission in endemic areas like Ethiopia. The aim of this study was to determine the prevalence of HBV infect ion, rate of MTCT, and associated risk factors among delivering mothers.MethodsThis health facility-based cross-sectional study was conducted in four public hospitals of the Eastern zone of Tigray among 473 delivering mothers. Structured questionnaires and laboratory results ...
Source: Infectious Diseases and Therapy - Category: Infectious Diseases Source Type: research
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Source: JAIDS Journal of Acquired Immune Deficiency Syndromes - Category: Infectious Diseases Tags: Letters to the Editor Source Type: research
CONCLUSIONS: In Erzurum, anti-HAV IgG prevalence is tremendously high, whereas prevalence of anti-HAV IgM is exceptionally low, especially in the paediatric age group. Therefore, HAV vaccine is provided free of charge in Turkey, including Erzurum, since 2012. PMID: 32955233 [PubMed - in process]
Source: Annals of Agricultural and Environmental Medicine : AAEM - Category: Environmental Health Authors: Tags: Ann Agric Environ Med Source Type: research
CONCLUSIONS: This study showed that Iran is among HAV low endemic countries and vaccination against HAV is recommended only in the high-risk population, including patients with chronic liver diseases, patients with coagulopathy, travelers to the high endemic areas, and homosexuals. Establishment of national HAV surveillance system, concerning of health system about the occurrence of the HAV outbreaks, implementation of harm reduction strategies, improving economic indices and sanitation and access to the safe water in the deprived regions is recommended. PMID: 32917416 [PubMed - as supplied by publisher]
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research
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Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - Category: Consumer Health News Authors: Tags: Boston News Health Syndicated CBSN Boston CNN Coronavirus Coronavirus Vaccine Source Type: news
CONCLUSION: Childcare workers have a higher occupational risk of infection but do not always receive the appropriate vaccinations. In particular, women of child-bearing age working in day-care centers should be made more aware of the need for vaccination. PMID: 32843135 [PubMed - in process]
Source: Deutsches Arzteblatt International - Category: General Medicine Tags: Dtsch Arztebl Int Source Type: research
CONCLUSIONS: Our study describes that during the study period, HAV infection affected predominantly young adults, particularly men who have sex with men. An elevated proportion of them was diagnosed with a concomitant sexually transmitted disease, and several patients had a severe presentation of the disease. PMID: 32835862 [PubMed - as supplied by publisher]
Source: Annals of Hepatology - Category: Gastroenterology Tags: Ann Hepatol Source Type: research
This study takes advantage of multi-year follow-up of a population with endemic typhoid participating in a cluster-randomized control trial of Vi capsular polysaccharide typhoid vaccine in Kolkata, India. A population of 70,566 individuals, of whom 37,673 were vaccinated with one dose of either Vi vaccine or a control (Hepatitis A) vaccine, were observed for four years. Surveillance detected 315 first typhoid visits, among whom 4 developed su bsequent typhoid, 3 due to reinfection, defined using genomic criteria and corresponding to -124% (95% CI: -599, 28) protection by the initial illness. Point estimates of protection c...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
CONCLUSION: Despite applicable HAV and HBV vaccination recommendations, substantial gaps exist in HAV and HBV susceptibility among a population of people who use drugs. These findings highlight the need for increased HAV and HBV vaccination efforts among people who use drugs. PMID: 32791034 [PubMed - as supplied by publisher]
Source: Public Health Reports - Category: International Medicine & Public Health Tags: Public Health Rep Source Type: research
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