Polio May Have Been Spreading in New York Since April

Polio may have been circulating widely for a year, and was present in New York’s wastewater as early as April, according to a new report from the Centers for Disease Control and Prevention. A wastewater sample collected in April in Orange County, NY, tested positive for the virus, pushing back the earliest known detection in … Read more

FDA Clears Path for Over-the-Counter Hearing Aids

The Food and Drug Administration moved today to make hearing aids available over the counter and without a prescription to adults, a long-sought wish of consumers frustrated by expensive exams and devices. As soon as mid-October, consumers with mild to moderate hearing loss should be able to buy hearing aids over the counter online and … Read more

Shark or Orca: Which Should You Fear More?

In the wild, is a human more likely to survive an encounter with an orca or a great white shark? — Kameryn F., Yardley, Pa. By the numbers, white sharks are a lot more dangerous to humans than orcas are. Despite the name “killer whale,” there is only one well-documented instance of a wild orca … Read more

What the New CDC Guidelines Mean for You

The Centers for Disease Control and Prevention relaxed many of its Covid-19 guidelines this week, shifting sharply away from several of the precautions, including quarantines and social distancing, that have long defined the pandemic. The move was prompted by the fact that many Americans now have some immunity to the coronavirus — through a combination … Read more