Monitoring HIV epidemics: declines in prevalence do not always mean good news.
Hallett
Timothy
T
D000349:Africa / Q000453:epidemiology; D004196:Disease Outbreaks; D004198:Disease Susceptibility; D005260:Female; D015658:HIV Infections / Q000453:epidemiology* / Q000635:transmission; D006801:Humans; D008297:Male; D011159:Population Surveillance