A new vaccine against the virus that leads to cervical cancer shows promising results, scientists say. Doctors say widespread use of the vaccine could sharply reduce the rate of the disease. NPR's Joe Palca reports.
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Joe Palca is a science correspondent for NPR. Since joining NPR in 1992, Palca has covered a range of science topics — everything from biomedical research to astronomy. He is currently focused on the eponymous series, "Joe's Big Idea." Stories in the series explore the minds and motivations of scientists and inventors. Palca is also the founder of NPR Scicommers – A science communication collective.