What is HIV prevalence? (Acheing Juliet 16 years old)
Response from Mr Munyaneza Gregory
HIV prevalence is given as a percentage of a population. If a thousand truck drivers, for example, are tested for HIV and 30 of them are found to be positive, then the results of a study might say that HIV prevalence amongst truck drivers is 3%. For the purpose of producing a national or international HIV prevalence figure, researchers include all people with HIV infection who are alive at a given point in time, whether or not they have progressed to AIDS. In most cases, HIV prevalence cannot be accurately determined from reported cases because many infections are undiagnosed or unreported. The best estimates are mainly based on the results of surveys of large groups of people.
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