title: An update on pneumococcal, influenza and hepatitis type B vaccines.
mesh_terms: D006509:Hepatitis B / Q000517:prevention & control*; D006801:Humans; D007251:Influenza, Human / Q000517:prevention & control*; D011018:Pneumonia, Pneumococcal / Q000517:prevention & control*; D014611:Vaccination / Q000009:adverse effects; D014612:Vaccines / Q000276:immunology
chemical_list: D014612:Vaccines