COVID-19 updates: Classes in Chicago canceled for 4th day
Chicago Public Schools has been in talks with teachers over COVID-19 safety.
As the COVID-19 pandemic has swept the globe, more than 5.4 million people have died from the disease worldwide, including over 837,000 Americans, according to real-time data compiled by Johns Hopkins University's Center for Systems Science and Engineering.
About 62.5% of the population in the United States is fully vaccinated against COVID-19, according to data from the Centers for Disease Control and Prevention.
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Israel approves 4th vaccine dose for people 60 and over
Israel's Ministry of Health approved a fourth dose of COVID-19 vaccine for health care workers and people over 60 years old, Prime Minister Naftali Bennett said.
"Israel will once again be pioneering the global vaccination effort," Bennett said at a press conference in Jerusalem. "Omicron is not Delta -- it’s a different ball-game altogether."
Fourth doses will be administered four months after booster shots, Bennett said.
ABC News' Jordana Miller
Surgeon general warns next few weeks 'will be tough'
U.S. Surgeon General Dr. Vivek Murthy warned that COVID-19 cases and hospitalizations will continue to increase as the omicron variant rapidly spreads across the country.
"The next few weeks are going to be tough for us," he told ABC's "The View" on Monday. "We’re already seeing record levels of cases, and we're seeing hospitalizations starting to tick up. We're seeing some of our hospital systems getting strained at this point."
Information from South Africa and the United Kingdom indicates omicron could be less severe than previous COVID-19 variants, Murthy said.
"We’re still going to see a lot of people get sick and a lot of hospitalizations, but the overall severity may end up being significantly lower," he said.
Murthy said both South Africa and the U.K. "had a very rapid rise, but then they had a very steep fall" in cases
"I'm hoping that that’s what happens here too," he added.
-ABC News' Joanne Rosa