Epidemiological Characteristics of Human Immunodeficiency Virus Type-2 Infection in Africa

Author:

Miyazaki Motonobu1

Affiliation:

1. Department of Welfare and Health, Akita Prefectural Government, Japan

Abstract

There are things yet to be clarified about African HIV-2 infection, compared to HIV-1 infection. However, the epidemiological characteristics have gradually been elucidated through various studies. HIV-2 infection is believed to have existed in the 1960s in Africa and is presently epidemic in West Africa. The HIV-2 seropositive rate for the general population is higher in urban regions than in rural areas. The peak age of persons infected with the HIV-2 tends to be higher than that of persons infected with the HIV-1, but no sex difference was recognized between the HIV-2 and HIV-1 seropositive rates. Sexual contact, mother-to-child transmission and blood transfusion have been confirmed as HIV-2 transmission modes. Prostitutes and patients with other STD are recognized as being high-risk groups for the HIV-2 infection. Patients who are infected with both HIV-1 and HIV-2 have also been identified, but it is suggested that the pathogenicity of HIV-2 is lower than that of HIV-1.

Publisher

SAGE Publications

Subject

Infectious Diseases,Pharmacology (medical),Public Health, Environmental and Occupational Health,Dermatology

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