"It felt very apocalyptic," one worker said of conditions amid the wildfire smoke.

Uganda’s longtime president says he is taking “forced leave” after testing positive for COVID-19

Federal prosecutors say six people from Washington, Arizona and Texas have been arrested and accused of fraudulently obtaining millions of dollars of COVID-19 aid from an assistance program meant for renters

Almost all wastewater treatments plants in the city are currently in the "high" detection level category.

Data from New York City's wastewater surveillance shows high levels of COVID detection, suggesting the virus could be ticking up, but experts say not to panic yet.

When Boris Johnson was U.K. prime minister, he established an independent inquiry into his government’s handling of the COVID-19 pandemic

A U.S. study suggests 1 in 10 people are getting long COVID after an omicron infection, a lower estimate than earlier in the pandemic

Jeff Bridges said setting "small goals" helped him recover from lymphoma and COVID-19.

AdventHealth, in Orlando, Florida, started an all-employee orchestra to help promote positive mental health after dealing with the stresses of the COVID-19 pandemic.

The COVID-19 public health emergency officially ends at midnight, which will end several programs including free testing kits.

Just hours after the World Health Organization declared COVID-19 no longer qualifies as a global health emergency, CDC Director Dr. Rochelle Walensky announced her June departure.

The CDC announced Friday it is changing some of the ways it surveils COVID-19 when the public health emergency expires on May 11.

The U.N. health agency first declared the coronavirus to be an international crisis on Jan. 30, 2020.

The World Health Organization said Friday it was downgrading COVID-19 and no longer characterizing it as a public health emergency.

While COVID-19 ebbs, the nation's public health leaders warned senators on Thursday that a return to "normal" should not mean forgetting the lessons learned since 2020

The fight over COVID and mask mandates in schools is shaking up the governor's race in Oklahoma after schools chief Joy Hofmeister announced she's leaving the Republican Party to run as a Democrat.

ABC News’ Kayna Whitworth spoke with Lewis Black about his new comedy special "Tragically I Need You" which premieres on YouTube for free on May 2.

A divided House panel on Wednesday alternately questioned and defended Randi Weingarten on COVID-19 school closures

Mexico's president announced over the weekend that he had COVID for the third time. Here's what we know about the likelihood of being reinfected with the virus.

The new subvariant has similar symptoms to seasonal allergies and accounts for an estimated 10% of new U.S. COVID-19 cases, the CDC reports.

Researchers are now monitoring the COVID-19 omicron subvariant, known as “Arcturus,” which may cause different symptoms like pink eye and higher fevers.

The lowest number of deaths since March 2020 was recorded over the last week, according to CDC reports.

A new CDC report found that weekly COVID-19 deaths in the United States have hit their lowest levels seen since March 2020.

A new CDC report published Thursday found about one-third of households in the United States used the free at-home COVID test website set up by the Biden administration.

More than 70 million kits were shipped across the country, according to the Centers for Disease Control and Prevention.

Three years after the pandemic hit the country, elected officials and scientists are still working to determine the origins of the virus.

The boosters will be available at least four months after the previous shot for people over 65 and for those who are immuno-compromised.

Dr. John Brownstein, an ABC News medical contributor, breaks down a report from Senate Republicans suggesting the COVID-19 virus emerged from an accidental lab leak in China.

The FDA authorized a second omicron-targeted bivalent COVID-19 booster vaccine for people over 65 or who are immunocompromised.

The report released by Senate Republicans on Tuesday suggested evidence that Chinese government officials were likely aware of the initial leak after it occurred.

The report alleges that researchers at the Wuhan Institute of Virology were testing at least 20,000 animal virus samples in sub-par biosafety environments.

The new report from Senate Republicans doubles down on the theory that the virus came from an accidental lab leak in Wuhan, China, and that there may have been more than one leak.

A new report from Senate Republicans doubles down on the theory that COVID-19 emerged from an accidental lab leak in Wuhan -- and possibly, even more than one leak.

Chronic absenteeism in schools persists around the country, fueled in part by disruptions from COVID-19, government data shows

Nearly 40% more students were chronically absent in public schools from 2021 to 2022, according to the National Center for Education Statistics.

The data showcases the lack of boosters received by the older population.

As we move into a new COVID phase, memories will fade with the passage of time and the constraints of how much our brain can hold, but experts say it’s more than that.

The WHO is monitoring a new COVID-19 subvariant that has been spreading in India and is beginning to pop up in the United States.

The new strain, which is similar to the current dominant strain in the U.S., is spreading in India and cases tripled in the last two weeks, WHO officials said.

A new report states that some patients with long COVID have sleeping issues.

ABC's Dr. Alok Patel breaks down the results and what the health alert on the 10% rise in prescription drugs among young adults really mean.

Arizona and New Mexico had death rates that were about four times higher than states with the lowest amount of deaths, according to The Lancet’s analysis.

A new analysis published Monday found COVID-19 deaths varied dramatically across the U.S. with Arizona having the highest rates and Hawaii having the lowest.

The White House COVID-19 team will wind down as the country moves out of the emergency phase of the pandemic, an administration official confirmed to ABC News.

Reports from scientific and intelligence communities shift the debate, while a definitive answer remains elusive.

President Joe Biden signed a bill on Monday that directs the government to declassify material on the source of the deadly virus.

ABC News’ Rachel Scott reports on the billions lost in pandemic aid fraud on “This Week.”

Public health experts explain to ABC News where the U.S. succeeded and where it didn't as the third anniversary of the pandemic passes.

An international team says DNA from raccoon dogs found in virus samples at a market in Wuhan, China, may point to where it started.

ABC News reporter Mary Kekatos shares what she learned while covering the “lab leak” theory report about COVID’s origins, which the U.S. Energy Department believes with “low confidence.”