Evidence is mounting that having COVID-19 may not protect against getting infected again with some of the new variants. People also can get second infections with earlier versions of the coronavirus if they mounted a weak defense the first time, new research suggests. How long immunity lasts...

When Dr. Stanley Fineman started as an allergist in Atlanta, he told patients they should start taking their medications and prepare for the drippy, sneezy onslaught of pollen season around St. Patrick’s Day. That was about 40 years ago. Now he tells them to start around St. Valentine’s...

TORONTO (Reuters) - Hedge funds are turning bullish on oil once again, betting the pandemic and investors’ environmental focus has severely damaged companies’ ability to ramp up production. Such limitations on supply would push prices to multi-year highs and keep them there for two...

Security forces have arrested a number of civilians in the Syrian government stronghold of Latakia after rare criticism of rampant poverty and corruption in President Bashar al-Assad's administration. Among those arrested in the province - the birthplace of Assad and home to members of...