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.

More than 10 million Americans had received their first dose of a Covid-19 vaccine as of Jan. 13, according to the U.S. Centers for Disease Control and Prevention, as the year-old pandemic roared on unchecked.

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.

Moncef Slaoui, the GlaxoSmithKline vaccines veteran who has helmed the federal government’s Operation Warp Speed Covid-19 vaccine program, is stepping down from the role ahead of the inauguration of President-elect Joe Biden.

U.S. firm Johnson & Johnson is likely to apply for EU approval for the company’s Covid-19 vaccine candidate in February, a top lawmaker said.

China’s Sinovac Biotech defended the safety and efficacy of the company’s experimental Covid-19 vaccine, after researchers in Brazil released late-stage clinical data showing efficacy that was much lower than initially announced.

Publicly traded companies that have been heavily involved in developing therapies and vaccines for Covid-19 have experienced significant spikes in their stock prices from March 2020 to January 2021, including Germany’s BioNTech, which surged 187% in one year.

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

Nearly 9 million Americans had been given their first Covid-19 vaccination dose as of Jan. 11, the U.S. Centers for Disease Control and Prevention said, as states scrambled to step up inoculations that have yet to slow the roaring pandemic.

Pfizer’s partner BioNTech boosted the 2021 delivery target for their Covid-19 vaccine to 2 billion doses, up from 1.3 billion previously, as they bring new production lines on stream and as more doses can be extracted per vial.