John Roehrig died March 8 after a battle with ALS. During his career, he was on the front lines of the U.S. response to West Nile virus.

or viruses spread by blood-sucking arthropods like mosquitoes and ticks, according to Dr. Lyle Petersen, the director of the CDC's Division of Vector-Borne Diseases in Fort Collins. In the summer ...

Santa Clara County's Vector Control District plans an aerial mosquito control operation on March 20 in the Palo Alto flood ...

Expanding Habitats Rising global temperatures are not just making the world a hotter place; they're also expanding the ...

The ads you're referring to are pop-up ads. Google disguises them slightly differently. Instead of putting them on a new tab, it puts them on an overlay. But they're pop-up ads.