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Lede photo for "How Vaccines Can Drive Pathogens to Evolve"

Vaccines Are Pushing Pathogens to Evolve

Just as antibiotics have bred resistance in bacteria, vaccines can potentially lose their effectiveness over diseases they controlled. Researchers are working to head off the evolution of new threats.

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How Math (and Vaccines) Keep You Safe From the Flu

Simple math shows how widespread vaccination can disrupt the exponential spread of disease and prevent epidemics.

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The Unforgiving Math That Stops Epidemics

If you didn’t get a flu shot, you are endangering more than just your own health. Calculations of herd immunity against common diseases don’t make exceptions.

infectious disease

A New Way to Predict Infection’s Toll

Scientists have developed new ways to forecast who will bounce back from disease by studying not just the way the immune system fights infections, but how the body repairs itself.

An image of dendritic cells.

RNA’s Secret Life Outside the Cell

Circulating RNAs carry messages for plants and invertebrates. Do they do the same for us?