Moderna says Covid vaccine effective against UK, S.Africa variants
US laboratory Merck says halting work on Covid vaccines
China's Xi warns Davos World Economic Forum against 'new Cold War'
Top EU envoy to visit Russia as bloc weighs sanctions
Navalny aide calls for new anti-Kremlin rallies Sunday
Pasteur Institute, Merck abandon Covid-19 vaccine
Putin says palace in Navalny report 'doesn't belong to me'
World shed equivalent of 255 mn jobs in 2020: UN
Russia protests US embassy, tech companies over Navalny rallies
Biden wants federal govt to buy more American products: official
