Last week in an op-ed for the International Herald Tribune, Steven L. Weinreb, M.D., provided an important lesson about vaccines and immunity.

As reported earlier this week in Voice of America News, the Zimbabwe health ministry is making plans to target typhoid, cholera and other water-borne diseases in t

Last week in separate deals with the GAVI Alliance, the drug companies Pfizer and GlaxoSmithKline (GSK) agreed to increase sales of cut-price pneumonia vaccines by 180 million doses, a 50% increase from previous commitments.

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