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Why is there no vaccine for epidemic malaria?

A vaccine is a preparation consisting of a weakened or dead version of a pathogen or characteristic components of its outer surface that, when injected into the vaccination subject, stimulate the subject's immune system to develop antibodies to the pathogen. Malaria is caused by a variety of species of the Plasmodium protozoan. The various organisms are complex and the characteristic surface components referred to above, also known as antigens, are constantly changing, so developing an effective vaccine is very difficult. Anti-malarial vaccine is an area of intensive scientific investigation, but there is no such currently available vaccine. Consequently, malaria continues as an epidemic throughout much of the developing world.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.