2012年10月8日 星期一

BBC News - Home: Typhoid vaccine failure warning

BBC News - Home
The latest stories from the Home section of the BBC News web site.
thumbnail Typhoid vaccine failure warning
Oct 8th 2012, 16:14

Hundreds of thousands of people recently immunised against typhoid may not have full protection because of a dud vaccine that has now been recalled, warn experts.

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