The Delta variant is as contagious as chickenpox, leaked CDC presentation says

• An internal CDC document said the Delta variant could be as transmissible as chickenpox.

• And it said fully vaccinated people who get sick may spread the virus as easily as the unvaccinated.

• But it said vaccines still protected people from severe disease and death.

• See more stories on Insider's business page.

The Delta coronavirus variant appears to be as contagious as chickenpox, a leaked internal document from the US Centers for Disease Control and Prevention said.

The document, obtained by The Washington Post, added that the variant was more transmissible than the viruses that cause MERS, SARS, Ebola, the common cold, the seasonal flu, and smallpox.

It also said there was early evidence that fully vaccinated people who get sick could spread the virus as easily as unvaccinated people.

But it said vaccines still protected people from severe disease and death in regard to the Delta variant.

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