Director of international health body says all hypotheses are on the table; Washington voices concerns about probe in tug-of-war with Beijing

One-dose coronavirus shot can now be used as part of the international COVAX effort to distribute vaccines globally

Many countries are now weighing their own certification systems, while grappling with moral questions over the prospect of dividing the world along lines of vaccine access

2.4 million cases were recorded last week, compared to over 5 million the week of January 4; coronavirus deaths also declining globally

Israel is far ahead of any other country worldwide with nearly half its population of 9 million having received at least one dose

Clashing claims come after covert meeting of health officials in Ramallah to discuss cooperation on pandemic

Recommitting to international health body, US secretary of state says America 'will work as a partner to address global challenges'

New cases decline for past five weeks, with a decrease of 50% over first week of January as outbreak subsides in most world regions, World Health Organization says

Large study based on 6,000 blood samples; findings consistent across West Bank and Gaza Strip, although death rates remain remarkably low

6.3 million doses administered in Eastern Mediterranean Region's population of 600 million; that doesn't include Jewish state, which has inoculated 4 million