The World Health Organization on Wednesday endorsed the RTS,S/AS01 malaria vaccine, the first against the mosquito-borne disease that kills more than 400,000 people a year, mostly African children.

The decision followed a review of a pilot program deployed since 2019 in Ghana, Kenya and Malawi where more than two million doses were given of the vaccine, first made by the pharmaceutical company GSK in 1987.

After reviewing evidence from those countries, WHO said it was “recommending the broad use of the world’s first malaria vaccine”, the agency’s director general Tedros Adhanom Ghebreyesus said.

The WHO said in a statement it was recommending the widespread application of the vaccine among children in sub-Saharan Africa and in other regions with moderate to high malaria transmission.

Many vaccines exists against viruses and bacteria but this was the first time that the WHO recommended for broad use a vaccine against a human parasite.

“From a scientific perspective this is a massive breakthrough,” said Pedro Alonso, Director of the WHO Global Malaria Program.

The vaccine acts against plasmodium falciparum—one of five parasite species and the most deadly.

Malaria symptoms include fever, headaches and muscle pain, then cycles of chills, fever and sweating.

Every two minutes, a child dies of malaria, according to the World Health Organization.

Before the newly recommended vaccine can reach African children, the next step will be funding.

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