2019
April
© image by Ute Frevert; false color by Margaret Shear [CC BY2.5]
| In Africa die more than 250,000 children of malaria every year. Now a big trial of vaccination against malaria has started in Malawi. In early trials the vaccination proved 40 percent effective. That is, the trial has the potential of a 40 percent reduction of cases and in consequence of deaths. |