Top Adviser To Operation Warp Speed Calls An October Vaccine 'Extremely Unlikely'x

The Centers for Disease Control and Prevention is asking states to have a plan in place to distribute a COVID-19 vaccine as soon as late October — but that doesn't mean an effective treatment will be ready quite so soon.

In separate interviews Thursday with NPR, the chief scientific adviser to the Trump administration's vaccine development effort and the former director of the CDC's office of public health preparedness cautioned that an effective vaccine is likely still months away.