title: Epidemiological surveillance for the spread of HIV infection. Foreword.
authors: P
authors: P
authors: Piot
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000517:prevention & control; D014943:Global Health; D015658:HIV Infections / Q000453:epidemiology* / Q000517:prevention & control; D015497:HIV-1; D006801:Humans; D011159:Population Surveillance