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Prevalence of human immunodeficiency virus, hepatitis C virus, hepatitis B virus and syphilis among individuals attending anonymous testing for HIV in Luanda, Angola.

Year: 2013 Volume: 103 Issue: 3 Part 3

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Prevalence of human immunodeficiency virus, hepatitis C virus, hepatitis B virus and syphilis among individuals attending anonymous testing for HIV in Luanda, Angola.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Guimarães Nebenzahl, H. Lopes, A. Castro, R. Pereira, F.
Spatial Coverage	Angola
Description	Country affiliation: Portugal Author Affiliation: Guimarães Nebenzahl H ( Instituto de Higiene e Medicina Tropical, Lisbon, Portugal. hanna.guimaraes@gmail.com)
Abstract	Human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV) and syphilis remain major infections around the world. In Angola there are about 166 000 individuals living with HIV, representing a prevalence of 1.98% in adults between 15 and 49 years of age. In a 2003 study in Luanda, 4.5% of pregnant women had antibodies to HIV and 8.1% to HBV, and 5.4% were infected with Treponema pallidum. Objectives. The aim of this study was to determine the prevalence of HIV-1 and 2, HBV, HCV and T. pallidum serological markers, and hence the prevalence of these infections, in individuals attending a sexually transmitted disease clinic in Luanda, Angola, and the burden of these infections in the Angolan population. Methods. Individuals attending a centre for anonymous testing for HIV were randomly included in the study. All samples were tested for HBV surface antigen (HBsAg), anti-HCV and anti-HIV-1 and 2 antibodies and antibodies to T. pallidum. Results. A total of 431 individuals (262 women and 169 men) were studied, of whom 10.0% (43/431) were seropositive for T. pallidum and 4.6% had active syphilis; 8.8% (38/431) were seropositive for HIV-1 and/or HIV-2 (of these, 78.9% were HIV-1-positive, 2.6% HIV-2-positive and 18.4% co-infected); 9.3% (40/431) were HBsAg-positive, while 8.1% (35/431) had antibodies to HCV. Of 102 patients with positive results, 26 (25.5%, or 6.0% of the total of 431 patients) were positive for more than one of the organisms studied. Rates of co-infection were as follows: 2.3% (10/431) for HIV/HBV, 0.9% (4/431) for HIV/HCV, and 0.9% (4/431) for HCV/HBV. Three individuals with active syphilis had viral co-infection, hepatitis B in 1 case and HIV in 2. Five individuals (1.2% of the total) were seropositive for three infections, HIV, hepatitis B and hepatitis C in 3 cases and HIV, hepatitis C and syphilis in 2. Conclusions. A high prevalence of co-infection with the infections studied was found in this population, including HIV infection (8.8%). These results demonstrate the need to improve screening for and treatment of HIV and other sexually transmitted infections in Angola, and for educational campaigns to prevent not only the morbidity and mortality associated with these diseases, but also their further transmission.
File Format	HTM / HTML
ISSN	02569574
e-ISSN	20785135
Journal	South African Medical Journal
Issue Number	3
Volume Number	103
Language	English
Publisher	Health & Medical Publishing Group
Publisher Date	2013-01-24
Publisher Place	South Africa
Access Restriction	Open
Subject Keyword	Discipline Medicine Hiv Infections Hiv-1 Immunology Hiv-2 Hepacivirus Hepatitis B Virus Hepatitis B Hepatitis C Syphilis Treponema Pallidum Adolescent Angola Epidemiology Anonymous Testing Statistics & Numerical Data Coinfection Prevention & Control Diagnosis Hiv Seropositivity Pregnancy Seroepidemiologic Studies Serologic Tests Sexually Transmitted Diseases Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Medicine

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