title: AIDS: a serious challenge to public health.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000150:complications / Q000209:etiology; D017977:Deltaretrovirus; D005260:Female; D014943:Global Health; D006801:Humans; D007194:India; D008297:Male; D012192:Retroviridae Infections; D014481:United States