700 vaccines in development, 3 are leading candida

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Drugmakers big and small have jumped in to try to develop a vaccine, which would be the most effective way to contain the virus. Pharmaceutical giants like Pfizer Inc. and Sanofi have vaccine candidates in the preclinical stages, according to the WHO document.


CanSino said last month it received Chinese regulatory approval to start human trials of its vaccine. Cambridge, Massachusetts-based Moderna -- which has never put out a product -- received regulatory approval to move quickly to human trials in March, skipping the years of animal trials that are the norm in developing vaccines. Inovio began its human trials last week.

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