Its name means "bending over in pain." It has no treatment or vaccine. Its symptoms resemble Dengue fever. And it has infected more than 1 million people -- 155 of them fatally -- since spreading to the Americas one year ago.
The Senate confirmed Vivek Murthy as surgeon general on Monday night as Democrats -- in the final days of their majority control of the chamber -- overcame stiff opposition from the National Rifle Association.
This year's flu vaccine is not as effective against the current strain of the influenza virus because the virus has mutated, the U.S. Centers for Disease Control and Prevention said in an advisory to doctors.