The World Health Organization asked six African countries to be alert for possible Ebola infections, as Guinea on Feb. 16 reported new cases and Democratic Republic of Congo said its new infections were a resurgence of a previous outbreak.

South Korea’s intelligence agency said North Korea attempted to steal information on coronavirus vaccines and treatments by hacking Pfizer Inc., a lawmaker briefed by the agency said.

A special fund for vaccine research that was set aside by the U.S. Department of Health and Human Services in 2010 has been misused to pay for unrelated expenses, a government report shows.

More than 1 million people have died from Covid-19 in North and South America, the Pan American Health Organization (PAHO) said.

Reuters found new evidence that the U.S. Centers for Disease Control and Prevention’s (CDC) response to the pandemic was marred by actions – or inaction – by the agency’s career scientists and frontline staff.

Covid-19 patients should take two doses of the Pfizer and BioNTech vaccine within a period of 21-28 days, the World Health Organization said as many countries grappled with a more highly infectious coronavirus variant.

In the United States during the week ended Dec. 20, someone died from Covid-19 every 33 seconds.

Global coronavirus infections surpassed the 75 million mark on Dec. 19, according to a Reuters tally, as several nations around the world begin vaccinating against the virus.

Initially traced to about 100 cases of Covid-19 that spread across the United States, the number of infections linked to a Biogen corporate conference held in February 2020 at the Boston Marriott Long Wharf Hotel has grown exponentially and researchers estimate the total could be as many as 300,000.

Moscow began distributing the Sputnik V Covid-19 shot via 70 clinics on Dec. 5 to the most exposed groups, marking Russia’s first large-scale vaccination against the disease, the city’s coronavirus task force said.