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WHO prequalifies second Malaria vaccine

The World Health Organization has added a second malaria vaccine to the list of pre-qualified vaccines in a significant milestone in prevention of the disease.

WHO had in October recommended the use of R21/Matrix-M malaria vaccine for the prevention of malaria in children following the advice of the WHO Strategic Advisory Group of Experts (SAGE) on Immunization and the Malaria Policy Advisory Group.

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Dr Rogério Gaspar, Director of the Department of Regulation and Prequalification, WHO said “Achieving WHO vaccine prequalification ensures that vaccines used in global immunization programmes are safe and effective within their conditions of use in the targeted health systems. WHO evaluates multiple products for prequalification each year and core to this work is ensuring greater access to safe, effective and quality health products”.

The prequalification of the world’s second malaria vaccine, developed by Oxford University and manufactured by Serum Institute of India, is poised to expand access to malaria prevention through vaccination.

Dr Kate O’Brien, Director of the Department of Immunization, Vaccines and Biologicals, said “Today marks a huge stride in global health as we welcome the prequalification of R21/Matrix-M, the second malaria vaccine recommended for children in malaria endemic areas. This achievement underscores our relentless commitment to wiping out malaria which remains a formidable foe causing child suffering and death. This is another step toward ensuring a healthier, more resilient future for those who have lived for too long in fear of what malaria could do to their children. Together with our partners, we are united in the pursuit of a malaria-free future, where every life is shielded from the threat of this disease.”

The prequalification means wider access to vaccines as a key tool to prevent malaria in children with it being a prerequisite for vaccine procurement by UNICEF and funding support for deployment by Gavi, the Vaccine Alliance.

When implemented broadly, along with other recommended malaria control interventions, they are expected to have a high public health impact.

The R21 vaccine is the second malaria vaccine prequalified by WHO, following the RTS,S/AS01 vaccine which obtained prequalification status in July 2022. Both vaccines are shown to be safe and effective in clinical trials, for preventing malaria in children.

Malaria, a mosquito-borne disease, places a particularly high burden on children in the African Region, where nearly half a million children die from the disease each year. Globally, in 2022, there were an estimated 249 million malaria cases and 608,000 malaria deaths across 85 countries.

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