The endosymbiont Coxiella affects tick serotonin production and subsequent blood-feeding behavior, a study finds.

In Northern California, the proportion of ticks infected with the bacterium Borrelia burgdorferi was the same in shrubland along beaches as in woodland habitats.

The Asian longhorned tick, first found in the country last year, is now present in several states.

Warmer weather is thought to be behind the rise in vector-borne illnesses in recent years.

This lone star tick’s bite can cause an allergy to red meat.

Scientists have found the oldest known specimen of a blood-sucking insect together with the remains of its host. 

These fossilized red blood cells (right), found in an ancient, blood-engorged Amblyomma tick (left), likely belonged to primates.

What researchers are learning as they sequence, map, and decode species’ genomes

A new tick-borne disease has emerged in the US Midwest—and the culprit is not a bacterium.