29 Nov 2009
The typhoid vaccine is produced by heating a strain of salmonella typhi and then adding phenol, holding and then freeze drying the vaccine. This process inactivates the salmonella typhi strain.
The heat kills the salmonella and the phenol preserves it so that it can be reconstituted and given by injection when required.
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1 answer • 3 Aug 2009
From close personal contact with other such as kissing. If so, how long after hte last does is it safe for others to be in close contact with the ...
1 answer • 10 Dec 2010
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1 answer • 25 Dec 2011
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0 answers • 8 Jan 2016