Unless immunisation is re-started promptly it will allow the virus time to spread and infect more children.

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As with any vaccine, the aim is to prompt the immune system to recognise this outer shell and destroy the pathogen before it has time to lock onto cells and infect them with its genetic material.

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In early experiments, Bhatia's lab, called the Laboratory for Multiscale Regenerative Technology, was able to infect her liver cells with malaria for the first time two weeks ago and hopes to be able to offer malaria researchers a way to test drugs that will kill the hypnozoites.

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