In individuals with a rare genetic disorder that affects blood vessels, arteries and veins develop abnormal connections, causing bleeding in the skin, nose, and other organs. In most cases, the condition — hereditary hemorraghic telangiectasia, or HHT —...
The Zika-bearing mosquito Aedes aegypti is not only spreading rapidly but has shown a remarkable ability to adapt quickly to different locales and climates, according to Jeffrey Powell, professor of ecology and evolutionary biology and environmental...