| hepatitis a antibodies: prevalence and persistence in a group of mexican children. | the prevalence of antibodies against hepatitis a virus (anti-hav) was evaluated in sera from 275 asymptomatic infants and children under the age of five years and in 46 maternal-cord serum pairs, followed by sera obtained thereafter each month from the first to the fifth month of life in 29, 17, 9, 9 and 7 infants (a total of 163 serum samples). anti-hav was found in all cord blood sera, but its prevalence declined progressively to 0% among 19 infants aged eight months. four (25%) of 16 children ... | 1985 | 2981126 |
| identification of enteric viruses in foods from mexico city. | foodborne viruses are a common and, probably, the most under-recognized cause of outbreaks of gastroenteritis. among the main foods involved in the transmission of human enteric viruses are mollusks, and fruits and vegetables irrigated with wastewater and/or washed with non-potable water or contaminated by contact with surfaces or hands of the infected personnel during its preparation. in this study, 134 food samples were analyzed for the detection of norovirus, rotavirus, and hepatitis a virus ... | 2016 | 27221088 |
| seroprevalence of hepatitis a virus in a cross-sectional study in mexico: implications for hepatitis a vaccination. | hepatitis a virus (hav) remains a public health concern worldwide contributing to significant morbidity in developed and developing countries. this cross-sectional database study estimated the overall hav seroprevalence and the seroprevalence by gender, age, region and socioeconomic status in mexico. between january and october 2010, serum samples collected during the national health and nutrition survey (ensanut 2006) were obtained from subjects aged 1-95 y. subjects' gender, age, geographical ... | 2013 | 23291940 |