Malaria is a mosquito-borne disease caused by a parasite — any of five species from the Plasmodium genus. Symptoms include fever, headaches, and chills, and nearly half of the world’s population was at risk of malaria in 2020, according to the World Health Organization (WHO). The only WHO-recommended currently available vaccine has a low efficacy rate.
A new vaccine that is nearing the end of phase 3 clinical trials may be the solution we’ve been waiting for, with the potential to prevent up to 77 percent of cases.
The first generation malaria vaccine, named RTS,S/AS01, prevents about 39 percent of malaria cases and about 29 percent of severe cases, according to vaccine studies in children in Africa. In Octo 2021, it became the first vaccine for malaria to be officially recommended by the WHO. By April 2022, this vaccine has protected more than 1 million children.
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