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.

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.

More Americans were hospitalized with Covid-19 on Jan. 6 than at any time since the pandemic began, as total coronavirus infections crossed the 21 million mark, deaths soared across much of the United States and a historic vaccination effort lagged.

The Centers for Disease Control and Prevention administered 4,563,260 first doses of Covid-19 vaccines in the United States as of the morning of Jan. 4 and distributed 15,418,500 doses.

U.S. Senator Mitt Romney urged the U.S. government to immediately enlist veterinarians, combat medics and others in an all-out national campaign to administer coronavirus vaccinations and slow a surging rise in Covid-19 hospitalizations and deaths.

The Centers for Disease Control and Prevention had administered 2,589,125 first doses of Covid-19 vaccines in the United States as of the morning of Dec. 30 and distributed 12,409,050 doses.

The U.S. Food and Drug Administrationlifted a clinical hold on Audentes Therapeutics’ ASPIRO trial studying AT132 as a potential treatment for X-linked myotubular myopathy (XLMTM), a rare neuromuscular disease.

The United States recorded more than 15,000 deaths from Covid-19 and over 1.2 million new cases for the week ended Dec. 27, though those numbers may be artificially low due to reporting gaps over the Christmas holiday.

The U.S. Centers for Disease Control and Prevention on Dec. 27 reported 18,909,910 cases of new coronavirus, an increase of 179,104 cases from the CDC’s previous count, and said deaths rose by 1,309 to 330,901.

Europe launched a cross-border vaccination program of unprecedented scale on Dec. 27 as part of efforts to end the Covid-19 pandemic that has crippled economies and claimed more than 1.7 million lives around the world.