persistent

Human papillomavirus (HPV) is the second most common cancer-causing virus, accounting for 690,000 cervical and other cancers each year worldwide.…

At the heart of a far-off galaxy, a supermassive black hole appears to have had a case of the hiccups.…

Urinary tract infections frequently cause people to need to urinate more often than usual SimpleImages/Getty Images Pain that persists even…

Urinary tract infections are painful, inconvenient and incredibly common. For decades, doctors haven’t had any leads on why, even after…