HealthVaccinationWHO Approves Vaccine For Malaria
The WHO had approved the vaccine after a two-year study of 800,000 individuals in Ghana, Kenya and Malawi to reduce child illness and deaths in areas with moderate and high malaria transmission. The vaccine, the first developed for any parasitic disease, during clinical trials had an efficacy of about 50 per cent against severe malaria in the first year but dropped close to zero by the fourth year. And the trials did not measure the...










