Azerbaijan and Armenia accused each other of shelling military positions and villages Thursday, breaking a day of ceasefire in border clashes between the two former Soviet republics. Eleven Azeri soldiers and a civilian, and four Armenian servicemen, have died since Sunday in renewed...

Immunity to COVID-19 may decline over months, according to a new study by King’s College University in London. The study, published on the preprint server medRXiv and yet to be peer-reviewed, found that antibodies peaked three weeks after the onset of symptoms before gradually declining...

More than 125 million people in India began a new lockdown Thursday as authorities worldwide scramble to get a handle on a surge in coronavirus cases that continues to wreak havoc from America to Asia. The number of infections worldwide hit 13.4 million and more than 581,000 deaths have...

Defense officials in Armenia and Azerbaijan said fighting on their border subsided on Wednesday after several days of deadly clashes raised fears of a major flare-up. At least 16 people on both sides were killed in three days of shelling that started Sunday between the ex-Soviet republics,...