Mosaic of the AIDS epidemics in Latin America and the Caribbean.

: In Latin America and the Caribbean, the AIDS pandemic is comprised of groupings of different epidemics, varying in transmission routes and in populations affected. Primary modes of HIV transmission in Latin America, the Caribbean, and South America are outlined, and vary from type of sexual contact to intravenous drug use, depending on the subregion. Overall, the epidemic is progressing into younger, more impoverished, and more rural populations. Efforts to stem the spread of the epidemic should meet the prevention needs of marginalized and impoverished populations and be consistent with the type and characteristics of the epidemics found at the country level. Timely surveillance is a key component in alleviating the epidemic. Strategies targeting at-risk populations should empower women, educate youth, and disseminate messages.