Dr. Bruce Aylward has almost 30 years experience in fighting polio, Ebola and other diseases, and now, he’s turned his attention to stopping the spread of COVID-19.
Two U.S. Republican lawmakers, Senator Ted Cruz and Rep. Paul Gosar, said on Sunday they will quarantine themselves after contact at a late February gathering of conservatives with someone who has since tested positive for coronavirus.
Sen. John McCain, 80, has a brain tumor, the Mayo Clinic and the Arizona Republican's office announced Wednesday night.
Progress on research and treatment for dementia has been "achingly slow", an expert says ahead of a London summit. Dr Dennis Gillings said a pledge by G8 countries to find a cure or treatment by 2025 would be "impossible" without better incentives for investment.
Russia's unmanned Luna-25 spacecraft has crashed into the Moon after spinning out of control, officials say.
Donald Trump has confirmed that he will not take part in Republican presidential debates with his rivals in the race for the White House.