title: Hope for AIDS vaccine fades with news of superinfection.
mesh_terms: D016915:AIDS Vaccines; D006678:HIV / Q000145:classification; D015658:HIV Infections / Q000517:prevention & control* / Q000635:transmission; D006801:Humans; D013045:Species Specificity; D015163:Superinfection / Q000150:complications*
chemical_list: D016915:AIDS Vaccines