Further studies with a diphtheria–tetanus–poliomyelitis vaccine

The efficiency of a diphtheria, tetanus, poliomyelitis vaccine in inducing a serological response after a three-dose primary course of immunization was tested in thirty-nine children aged 5 and 6 years and found to be satisfactory. This vaccine had previously been shown to be suitable for use as a s...

Ausführliche Beschreibung