Katherine J. Wu

Now that thousands live in the United States, some people would like to kill more of them.

How many deaths might tip vaccination rates back upwards?

The state’s measles outbreak could soon be bigger than West Texas’s. Are the two connected?

The virus is storming the country, a reminder of how terrible its toll can be.

Killing the protected animals may be the only way to stop them from eating too many of the Pacific Northwest’s endangered salmon.

A leading vaccine expert on what the country’s newly overhauled immunization schedule means for children

The Trump administration’s cuts to research may have spoiled the country’s appetite for bold exploration.

Most cases are mild, obscuring the disease’s worst outcomes.

While NIH director Jay Bhattacharya focuses on podcasting, his second-in-command is dramatically remaking the agency.