Answers

2015-05-06T21:02:09+05:30
Because it protects us against 3 desease. The desease are:diptheria , pertussis and whoophing cough.
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Sorry, the desease are:diphtheria, pertussis and tetanus
2015-05-06T21:14:33+05:30
DPT is called triple antigen DPT means depthirian petanues tetanus
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