The increase comes less than two weeks after Halloween.
A pandemic of the novel coronavirus has now killed more than 1.3 million people worldwide.
Over 53.2 million people across the globe have been diagnosed with COVID-19, the disease caused by the new respiratory virus, according to data compiled by the Center for Systems Science and Engineering at Johns Hopkins University. The actual numbers are believed to be much higher due to testing shortages, many unreported cases and suspicions that some national governments are hiding or downplaying the scope of their outbreaks. The criteria for diagnosis -- through clinical means or a lab test -- has also varied from country to country.
Since the first cases were detected in China in December, the virus has rapidly spread to every continent except Antarctica. The United States is the worst-affected nation, with more than 10.7 million diagnosed cases and at least 244,283 deaths.
Nearly 200 vaccine candidates for COVID-19 are being tracked by the World Health Organization, at least 10 of which are in crucial phase three studies. Of those 10 potential vaccines in late-stage trials, there are currently five that will be available in the United States if approved.
British health authorities reported 595 new COVID-19 deaths on Wednesday, bringing the United Kingdom's death toll to over 50,000.
The U.K. is the first country in the European region to top 50,000 deaths.
Italy confirmed 32,961 new cases of COVID-19 in the last 24 hours, bringing its tally soaring past 1 million.
The latest daily case count is just under the country's all-time high of 39,809 on Nov. 7
Italy also registered an additional 623 fatalities from COVID-19 in the past day, the highest since April but still under the country's record of 919 deaths on March 27.
The nationwide, cumulative total now stands at 1,028,424 confirmed cases with 42,953, according to data published Wednesday by Italy's civil protection agency.
Italy, once the epicenter of the coronavirus pandemic, is battling a rising number of COVID-19 infections as a second wave sweeps much of Europe. It's the tenth country in the world to surpass 1 million confirmed cases, according to a real-time count kept by Johns Hopkins University.
United Airlines said Wednesday that it is disinfecting lobbies and terminals with electrostatic spraying at 35 of its busiest airports: Atlanta, Austin, Boston, Cleveland, Washington Reagan, Denver, Dallas Fort Worth, Newark, Fort Lauderdale, Greensboro, Guam, Honolulu, Washington Dulles, Houston George Bush, Kona, Las Vegas, Los Angeles, LaGuardia, London Heathrow, Orlando, Miami, Minneapolis/St. Paul, New Orleans, Maui, Chicago O'Hare, Portland, Philadelphia, Phoenix, San Diego, San Antonio, Seattle, San Francisco, Sacramento, Orange County and Tampa.
Terminals at those airports are disinfected a few times a week, and United said it plans to introduce the electrostatic spray cleaning nightly by early December.
The electrostatic sprayer can "reach and uniformly coat germ-prone surfaces, including areas that conventional trigger sprays may easily miss," according to a press release.
The airline said it hopes to expand to more airports next year.
ABC News' Gio Benitez contributed to this report
Ethiopia has confirmed more than 100,000 COVID-19 cases, becoming one of just a handful of countries across Africa that have surpassed the grim milestone.
Other African countries with over 100,000 confirmed cases as of Wednesday are Egypt with 109,000, Morocco with 265,000 and South Africa with 740,000. Meanwhile, the 54-nation African continent is approaching 2 million confirmed cases, according to the latest data from the Africa Centers for Disease Control and Prevention.
The development comes as Ethiopia, one of Africa's most populous countries, appears to be on the brink of civil war amid increasingly deadly skirmishes in its northern Tigray region between federal forces and Tigray's ones.
The United Nations and other groups have warned of a brewing humanitarian crisis that could affect up to 9 million people.
