Expansion of vaccine for HPV

HPV or human papilloma virus is the most common sexually transmitted disease, with about 79 million Americans infected. There are no symptoms and the virus is hard to detect with traditional screening. Because HPV can lead to cancer, a vaccine was created in 2005 and given to people ages 13 to 26. In October, the FDA approved the vaccine for use in men and women ages 27 to 45. Arizona Horizon producer Shana Fischer sat down with Dr. Natalie Godbee, a gynecological oncologist from Cancer Treatment Centers of America, to talk about the vaccine.

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Dr. Natalie Godbee, a gynecological oncologist from Cancer Treatment Centers of America

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PBS KIDS celebrates Earth month with new episodes, activities

Enjoy a special week of adventures from "Wild Kratts," "Nature Cat" and "Ready Jet Go!" beginning April 15.

'Breakthrough' unravels the history of transcendent ideas

Take a mind-blowing journey through human history using six iconic objects that we often take for granted in "Breakthrough: The Ideas That Changed the World" each Wednesday at 9:30 p.m.

See the challenges, struggles and triumphs for African Americans in 'Reconstruction: America After the Civil War'

Host and producer Henry Louis Gates, Jr. takes you on a two-part, four-hour journey through one of America's most controversial-yet-least-understood historical periods.