Ehrlichiosis is a potentially life-threatening disease that affects dogs worldwide. Here's what every dog owner should know about it ...

Veterinarian Johanna Salzer checks dogs on the San Carlos Apache Reservation, Ariz. for brown dog ticks. She works as part of ...

Here in the dry desert, among the saguaro cactuses and tumbleweeds, investigators found a different culprit: Rhipicephalus sanguineus, commonly known as the brown dog tick, a species that thrives ...

for brown dog ticks. She works as part of a CDC team combatting Rocky Mountain Spotted Fever here. "If we started treatment on days 3-5 [of getting symptoms], we would start seeing patients that ...