HIV incidence using Immunoglobulin G capture BED-EIA in Thailand, 2011

Abstract

Background: HIV infection is so important health problem in Thailand. Incidence surveillance of HIV infection was conducted using Immunoglobulin G (IgG) capture BED-EIA (BED-CEIA) in pregnant women and service workers.
Objectives and Methods: The objective is to study the recent HIV infection in pregnant women and service workers. Repeated survey in the same dynamic population was used as a method of the surveillance to determine HIV infection in the two populations in 37 provinces and Bangkok.
Results: The incidence surveillance of HIV infection using IgG-capture BED-EIA shows that the prevalence of HIV infection among pregnant women has decreased since 1999, however, the incidence of HIV infection has increased. In the year 2010, the incidence of HIV infection among pregnant women was 0.18 per 100 populations per year, which was 4.7 times higher than the incidence in the year 2005. Of service workers, the prevalence and incidence have decreased since 2008. The HIV incidence of service workers in 2011 was only 0.73 per 100 populations per year compared to 2.76 per 100 populations per year in 2008. The incidence surveillance of HIV infection should be expanded to other provinces and populations to better represent the current HIV situation in Thailand.
Conclusion: The incidence of HIV infection in predicting new HIV infections has to be compared with the results of past studies to assess and evaluate the closeness in the expectation. In this study did not compare the results of past studies as prior studies to determine the specificity of the population of Thailand, which the newly research started in 2012.