A new vaccine from Oxford, called R21, has been shown to be not only effective for the prevention of malaria in children, but also easier to make with a lower price tag-so will help protect a greater number of African countries.

The World Health Organization (WHO) officially recommended the R21/Matrix-M vaccine this week-the second malaria vaccine in two years, following the RTS,S/AS01 vaccine, which received a WHO recommendation in 2021.

Both vaccines are shown to be safe and effective in preventing malaria in children, the deadly disease that killed 619,000 people in 2021 alone.

When implemented broadly, the treatments are expected to have a major public health impact against the mosquito-borne disease, particularly in the African Region.

Demand for the malaria vaccines is high, but, available supply of RTS,S is limited. The addition of R21 will boost supply that could benefit all children living in these areas.

"As a malaria researcher, I used to dream of the day we would have a safe and effective vaccine against malaria. Now we have two," said Dr. Tedros Adhanom Ghebreyesus, WHO Director-General. "Demand for the RTS,S vaccine far exceeds supply, so this second vaccine is a vital additional tool to protect more children faster, and to bring us closer to our vision of a malaria-free future."

The WHO Regional Director for Africa says the second vaccine holds real potential to close the supply gap for hundreds of thousands of young lives in Africa.

The ongoing R21 vaccine clinical trial and other studies showed:

The two WHO-recommended vaccines have not been tested in a head-to-head trial to compare performance, so the choice of product to be used in each country will be based on programmatic characteristics, vaccine supply, and affordability

At least 28 African countries plan to introduce one of the malaria vaccines as part of their national immunization programs-with the Vaccine Alliance Gavi providing technical and financial support to this effort in 18 countries. The RTS,S vaccine will be rolled out in some African countries in early 2024, with R21 becoming available to countries in the middle of next year.

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