As global health leaders investigate an unusual outbreak of monkeypox across more than a dozen countries, discussions in the United States have turned to vaccination against the disease -- and certain people exposed to the virus could be offered a vaccine.

The US Centers for Diseases Control and Prevention is investigating more cases of monkeypox across the United States as part of a global outbreak.

When you drop a piece of food on the floor, is it really OK to eat if you pick it up within five seconds?

Read CNN's Fast Facts on meningitis outbreaks in the United States. Meningitis is caused by the inflammation of membranes protecting the brain and spinal cord.

As some US schools attempt to heal from violence on their campuses, others are implementing drills in hopes of keeping students safe if the worst happens. But even the drills can cause anxiety, experts say.

Identifying long Covid in older adults can be tricky, but experts say there are good strategies for seniors to get medical advice and fight the impact of the virus.

Food companies across the US are recalling products in the wake of a Jif peanut butter recall over Salmonella contamination concerns. Among them:

More baby formula is expected on store shelves as soon as this weekend through a variety of government efforts.

Where did monkeypox come from, what are the signs and symptoms and how worried should you be? Here's what we know.

Dr. Robert Califf, the commissioner of the US Food and Drug Administration, gave a colorful description of what the FDA saw at their inspection of the Abbott baby formula plant.

Up to 800,000 people could benefit from using Sleepio, a digital app to treat insomnia, according to the National Institute for Health and Care Excellence in the United Kingdom.

Harry Enten goes for a swing on the trapeze.

Read CNN's Fast Facts for the origins, treatments and global response to HIV and AIDS.