Maputo, Mozambique — Mozambique has asked the World Health Organization to supply an additional 2 million doses of a cholera vaccine as the country struggles to control a spreading outbreak.
China and India both rolled out vaccines given through the nasal tissues last fall, though it’s not clear how well they may be working. Studies on the effectiveness of these vaccines have yet to be published, leaving much of the world to wonder whether this approach to protection really works in people.
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