What's Herd Immunity, and How Does It Protect Us?

When lots of people in an area are vaccinated, fewer people get sick. Then fewer germs are around to spread from person to person. This concept is called herd immunity, or community immunity. from WebMD Health https://ift.tt/2zI99...

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The Placenta, an Afterthought No Longer

By APOORVA MANDAVILLI from NYT Health https://ift.tt/2Rw0F...

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New Hope for African Children With Sickle-Cell Disease

By DONALD G. McNEIL Jr. from NYT Health https://ift.tt/2AEEh...

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Former President George H.W. Bush Dies

George Herbert Walker Bush, the nation's oldest living former president, has died at the age of 94. from WebMD Health https://ift.tt/2rf0d...

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Loss and Bravery: Intimate Snapshots From the First Decade of the AIDS Crisis

By Unknown Author from NYT Health https://ift.tt/2zyKO...

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