title: Vaccines. Response to hepatitis A vaccine weak in some PHAs.
mesh_terms: D000328:Adult; D018791:CD4 Lymphocyte Count; D016022:Case-Control Studies; D004311:Double-Blind Method; D005260:Female; D015658:HIV Infections / Q000276:immunology*; D022362:Hepatitis A Vaccines / Q000009:adverse effects / Q000276:immunology*; D006801:Humans; D008297:Male; D010919:Placebos; D019562:Viral Load
chemical_list: D022362:Hepatitis A Vaccines; D010919:Placebos