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(WTTW News)

The state law, which applies in Chicago as well as the rest of the state, took effect Jan. 1. 

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(WTTW News)

More than 14,000 students and staff within Chicago Public Schools are currently either quarantining or in isolation due to COVID-19, but the district will soon be shortening the amount of time those people need to stay home from school.

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Dr. Allison Arwady, the commissioner of the Department of Public Health, addresses the news media on Wednesday Jan. 19, 2021. (Chicago's Mayor's Office)

Chicago's COVID-19 test positivity peaked at 19.6% on Jan. 1, Arwady said, and hit 12.6% on Tuesday, the lowest rate since Dec. 28, according to city data. 

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(Patty Wetli / WTTW News)

Though N95 and KN95 masks are treated as disposable, single-use gear in clinical settings, in everyday life they can be reused for extended periods when cared for properly. We’ve got tips.

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(WTTW News)

“COVID is very real, it’s merciless, and unless you are fully vaccinated, your defenses against it are pretty low,” said Dr. Allison Arwady, the commissioner of the Chicago Department of Public Health. 

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(WTTW News)

There were 16,581 new and probable COVID-19 cases recorded within the past 24 hours by the Illinois Department of Public Health. That’s the highest single-day total this year and the highest since November 2020, per IDPH data.

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(WTTW News)

Chicago's updated travel advisory includes 42 states, announced Dr. Allison Arwady, the commissioner of the Chicago Department of Public Health.

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(WTTW News)

The omicron variant of COVID-19, which is believed to be highly transmissible, has been detected in Chicago, state and city health officials announced Tuesday. 

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(WTTW News)

Even as the threat posed by the omicron variant of COVID-19 has yet to materialize in Chicago, the city is enduring a “very significant” surge of COVID-19 fueled by the holiday gatherings and indoor events, Chicago’s top doctor said Tuesday.

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(WTTW News)

Chicago's updated travel advisory includes 38 states, announced Dr. Allison Arwady, the commissioner of the Chicago Department of Public Health.

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(WTTW News)

One week after it was removed from the advisory, officials returned Arkansas to the list of states with high rates of transmission. The advisory includes 38 states as well as Guam, announced Dr. Allison Arwady, the commissioner of the Chicago Department of Public Health.

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(WTTW News)

While the COVID-19 vaccine has now been approved for younger children, Chicago could find itself in the midst of another coronavirus surge this winter if families wait too long to get their children vaccinated, the city’s top doctor said Tuesday.

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(WTTW News)

Chicago officials removed Arkansas from the city’s COVID-19 travel advisory Tuesday even as confirmed cases of COVID-19 continue to rise in Chicago as colder weather blanketed the city. 

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(WTTW News)

The advisory continues to cover 41 states as well as Guam, announced Dr. Allison Arwady, the commissioner of the Chicago Department of Public Health. 

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(WTTW News)

The city is poised to get nearly 100,000 doses of the Pfizer vaccine for kids during the first week after the vaccine is authorized, officials said. 

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(WTTW News)

City officials removed Georgia, Louisiana, Maryland and Mississippi from the travel order, joining Florida, Hawaii, California, Connecticut, Washington, D.C. and Puerto Rico.