1 janv. 2004 - 80 million African children get polio vax in 23 days
Description:
In Africa, synchronized National Immunization Days in 23 countries target 80 million children, the largest coordinated polio immunization effort on the continent.Ajouté au bande de temps:
Date:
1 janv. 2004
Maintenaint
~ Il y a 21 ans