PETBOOK editor and biologist Saskia Schneider explains how fleas differ among humans, dogs, and cats, whether they are ...

Plague is caused by bacteria carried by fleas that bite infected rodents. It's naturally occurring in the western U.S.

Flea-borne typhus infections occur year-round in areas of Los Angeles and Orange counties, but cases tend to peak during late summer and fall months.

Despite the recent death of a man from the plague in Flagstaff, health experts say the risk of catching the deadly, flea-born ...

"Cat fleas don't live on humans. They prefer to hide in the warmer body temperatures of a cat or a dog, and like hiding in ...

The New Mexico Department of Health is reporting a human case of the plague. This is the first reported human plague case of ...