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The novel coronavirus pandemic has killed over 1.1 million people worldwide.

ByMorgan Winsor, Emily Shapiro, and Ivan Pereira
Video byJessie DiMartino
Last Updated: November 2, 2020, 3:53 AM EST

A pandemic of the novel coronavirus has now killed more than 1.1 million people worldwide.

Over 44.3 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 8.8 million diagnosed cases and at least 227,673 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.

Latest headlines:

Here's how the news developed today. All times Eastern.
Oct 28, 2020, 3:30 PM EDT

MLB slams Dodgers player for returning to field after testing positive

Major League Baseball criticized Justin Turner for returning to the field Tuesday night when his team won the World Series after the Dodgers' third baseman was removed from the game because he tested positive for COVID-19.

Turner was put into isolation, according to a statement from MLB, but he "chose to disregard the agreed-upon joint protocols and the instructions he was given regarding the safety and protection of others."

PHOTO: Justin Turner and the Los Angeles Dodgers pose for a photo after winning the 2020 MLB World Series in Arlington, Texas, Oct. 27, 2020.
Justin Turner and the Los Angeles Dodgers pose for a photo after winning the 2020 MLB World Series in Arlington, Texas, Oct. 27, 2020.
Ronald Martinez/Getty Images

Los Angeles Dodgers third baseman Justin Turner (10) celebrates with the Commissioner's Trophy after the Los Angeles Dodgers beat the Tampa Bay Rays to win the World Series in game six in Arlington, Texas, Oct. 27, 2020.
USA TODAY Sports via Reuters

"Turner’s decision to leave isolation and enter the field was wrong and put everyone he came in contact with at risk," MLB said. "When MLB Security raised the matter of being on the field with Turner, he emphatically refused to comply."

The Commissioner’s Office is investigating.

The Dodgers were tested Tuesday night, and both the Rays and Dodgers were tested again Wednesday, MLB said, adding that the teams' "travel back to their home cities will be determined after being approved by the appropriate authorities."

The Dodgers said Wednesday that the team will wait to celebrate with the fans "until it is safe to do so."

Oct 28, 2020, 2:32 PM EDT

April 2021 Boston Marathon postponed

The Boston Marathon set for April 2021 will be postponed until at least the fall of 2021, the Boston Athletic Association announced Wednesday.

Runners cross the finish line on Boylston Street during the 123rd Boston Marathon, April 15, 2019.
Boston Herald via Getty Images, FILE

Runners make their way towards the finish line of the 123rd Boston Marathon, April 15, 2019.
Boston Herald via Getty Images, FILE

The postponement comes amid a rise of coronavirus cases in Massachusetts. This year's marathon was canceled.

Monday marked the state’s highest daily case count since the spring, the Boston Herald reported. Last week brought multiple days of daily case counts over 1,000, which the state hadn’t seen since the spring, the Herald said.

Massachusetts now has over 149,000 confirmed COVID-19 cases and at least 9,664 fatalities.

ABC News’ Leo Mayorga contributed to this report.

Oct 28, 2020, 1:28 PM EDT

Italy, Greece report record increases again

Italy and Greece both reached new records for daily COVID-19 cases for the second day in a row.

Italy reported 24,991 new cases on Wednesday, breaking the record of 21,994 cases from Tuesday, according to the Civil Protection Agency.

Italy now has over 589,000 COVID-19 cases and at least 37,905 fatalities.

Doctors and nurses wearing protective equipment at work inside the Covid area of the Niguarda hospital's Emergency Room in Milan, Oct. 28, 2020.
Paolo Salmoirago/EPA-EFE via Shutterstock

Greece set a new record with 1,547 new cases on Wednesday, up from Tuesday’s record of 1,259, according to the National Public Health Organization.

A woman puts on a protective mask while shopping in accordance with the government the mandatory use of face masks in all public areas either closed or open and curfew that was announced in Athens, Oct. 24, 2020.
Anadolu Agency via Getty Images

Greece now has over 34,000 COVID-19 cases and at least 603 deaths.

ABC News' Christine Theodorou contributed to this report.

Oct 28, 2020, 12:57 PM EDT

Germany to close restaurants, bars for 4 weeks

German officials have agreed to a partial shutdown, shuttering restaurants, bars and theaters for four weeks as COVID-19 cases climb, Chancellor Angela Merkel said, according to The Associated Press.

Police and public order officers enforce the wearing of masks during a rally against coronavirus restrictions in Cologne, Germany, Oct. 28, 2020.
Sascha Steinbach/EPA-EFE via Shutterstock

Germany has reported a record 14,964 new COVID-19 cases in the last 24 hours, bringing the nation’s total to over 464,000 cases, according to the Robert Koch Institute.

At least 10,183 people in Germany have died.

ABC News' Christine Theodorou contributed to this report.