|
Longterm Study in Guinea-Bissau (1 Kristensen I, Aaby P, Jensen H.:“Routine vaccinations and child survival: follow up study in Guinea-Bissau, West Africa”, BMJ 2000; 321: 1435–41
The children of 15,000 mothers were observed from 1990 to 1996 for 5 years.
Result: the death rate in vaccinated children against diphtheria, tetanus and whooping cough is twice as high as the unvaccinated children (10.5% versus 4.7%).
|