Single Cholera Vaccine Dose May Slow Cholera Epidemics

When it comes to a vaccine to prevent cholera, one dose may be as good as two. That is the finding of a new study whose authors say the strategy would make a new vaccine that is in short supply go further. The World Health Organization is stockpiling 2 million doses of a recently licensed oral cholera vaccine to prevent the severe diarrheal illness.   An estimated 1.4 billion people around the world, according to the WHO, are at risk for contracting the water-borne illness, making...

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