DaPT vaccine

Photo: DaPT vaccine ( from Takeda Pharmaceutical Compamy Ltd.)

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Diphtheria, acellular Pertussis and Tetanus vaccine

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In 1981, acellular pertussis(whooping cough) vaccine introduced in

Japan. The acellular or component pertussis vaccine have been few

side effects(Encephalopathy, fever, swelling of injection site ---- )

compare to that of whole cells vaccine.

The delay of introduction to other countries, was that it was difficult

to do the clinical vaccine control-study, since the prevalence of

whooping cough was low in Japan. Therefore, USA, Canada and

European countries independently conducted the control study of

this acellular pertussis vaccine and later proved its efficacy.

What is pertussis(whooping cough) ?

------- see http://keiji-hagiwara.blogspot.com/2008/11/whooping-cough-pertussis.html

Any questions: write to keijihagiwara@gmail.com