The worldwide coronavirus death toll surpassed 2 million on Jan. 15, according to a Reuters tally, as nations around the world are trying to procure multiple vaccines and detect new Covid-19 variants.

A new, highly transmissible variant of the coronavirus first discovered in Britain could become the dominant variant in the United States by March, the U.S. Centers for Disease Control and Prevention warned.

President-elect Joe Biden’s plan to boost the Covid-19 vaccine rollout – including by spending $20 billion to create mass vaccination centers – should help speed up putting shots into the arms of millions of Americans, experts and officials told Reuters.

Johnson & Johnson is on track to roll out a single-shot coronavirus vaccine in March, and plans to have clear data on how effective it is by the end of January or early February, the U.S. healthcare company’s chief science officer said.

The second year of the Covid-19 pandemic may be tougher than the first given how the new coronavirus is spreading, especially in the northern hemisphere as more-infectious variants circulate, the World Health Organization (WHO) said.

Immunity from Moderna Inc.’s Covid-19 vaccine should last at least a year, the company said at the J.P. Morgan Healthcare conference.

Worldwide coronavirus cases surpassed 90 million on Jan. 11, according to a Reuters tally, as nations around the globe scramble to procure vaccines and continue to extend or reinstate lockdowns to fight new coronavirus variants.

Pfizer Inc. and BioNTech’s Covid-19 vaccine appears able to protect against a key mutation in the highly transmissible new variants of the coronavirus discovered in Britain and South Africa, according to a laboratory study conducted by the U.S. drugmaker.

As the events that unfolded in Washington on Jan. 6 captured the nation’s attention, the raging coronavirus pandemic claimed its highest U.S. death toll yet, killing more than 4,000 people in a single day according to a Reuters tally.

EU countries could begin rolling out Moderna’s Covid-19 vaccine as soon as next week after authorities approved the region’s second shot on Jan. 6, with more infectious variants of the virus adding extra urgency to inoculation efforts.