Transmission. Study planned to track HIV spread among migrant workers.
D002140:California / Q000453:epidemiology; D003299:Cooperative Behavior; D015658:HIV Infections / Q000453:epidemiology* / Q000635:transmission; D006801:Humans; D008800:Mexico / Q000453:epidemiology; D014171:Transients and Migrants; D014481:United States