Coronavirus

The Dow Jones Industrial Average surged 1,500 points, or 5.4%, in early trading Monday and the S&P 500 jumped 3.7% after drugmaker Pfizer said early data show its coronavirus vaccine looks highly effective.

Trader Joe's has disclosed the COVID-19 infection rate among its employees, addressing rising concern over a recent survey that revealed a number of grocery store workers at a Boston market had the disease without showing symptoms.

Researchers found that workers who reported exclusively going into an office in the two weeks prior to getting sick were nearly twice as likely to test positive for the virus.

An analysis of federal data from 20 states for The Associated Press finds that new weekly cases among residents rose nearly four-fold from the end of May to late October, from 1,083 to 4,274.

The United States has recorded more than 120,000 new confirmed COVID-19 cases on Saturday, breaking the previous single-day record, and the fourth consecutive day for new cases over 100,000, according to data from Johns Hopkins University.

President Donald Trump's chief of staff Mark Meadows has been diagnosed with the coronavirus as the nation sets daily records for confirmed cases for the pandemic.

Missouri state health officials said they don’t believe the man was in close contact with the more than 1,800 voters who visited the polling location where he was working on Election Day.

The U.S. has recorded more than 100,000 new confirmed coronavirus cases for a third consecutive day, according to data from Johns Hopkins University. 

The coronavirus evolves constantly and, to date, there is no evidence that any of the mutations pose an increased danger to people. But Danish authorities were not taking any chances.