Mercer Cluster

This year’s flu vaccine is only 29% effective. Here’s why you still need to get that shot

This year’s flu vaccine is only 29% effective. Here’s why you still need to get that shot

Emily Rose Thorne, Digital Editor

October 23, 2019

When enough people in a community are vaccinated against a disease, it can’t travel as easily from person to person, and the entire community is less likely to catch it. This phenomenon is called herd immunity, and it helps keep everyone safe.

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