In newly updated COVID-19 guidance on its website, the Centers for Disease Control and Prevention said that loosely woven cloth masks provide the "least protection", while masks like N95 respirators offer the highest level.

In some cases, Americans might want to opt for higher-quality masks like KN95 and N95 respirators, the agency said.

"Wearing a highly protective mask or respirator may be most important for certain higher risk situations, or by some people at increased risk for severe disease," the CDC stated.

The CDC recommendation stops short of calling on Americans to choose one mask over the other, maintaining that any mask is better than no mask.

The updated guidance comes after weeks of health experts urging Americans to upgrade their masks in the face of omicron.

-ABC News' Anne Flaherty

The White House will launch a new website on Wednesday to distribute 500 million free at-home rapid tests that'll be mailed to Americans' doorsteps, senior administration officials said on a Friday call with reporters.

People will be able to order four tests per household at from this first batch of 500 million. The White House will also launch a call line for people who don't have computer access.

The tests will take seven to 12 days to arrive, the senior officials said.

On Thursday, President Joe Biden also pledged a second 500 million tests, bringing the total free tests that will eventually be offered to Americans up to 1 billion.

-ABC News' Cheyenne Haslett

New York is "turning the corner" following record-breaking COVID-19 cases over the holidays, according to Gov. Kathy Hochul.

She said the seven-day case average and positivity rate are heading down.

One week ago there were over 90,000 daily cases, and now just 49,027 daily cases, the governor said Friday.

However, state numbers may be skewed due to the increased demand in testing during the holidays.

New York state is seeing a slight decline in hospitalizations, but at 12,000 patients, that number "is still very high," the governor noted.

In New York City, Mayor Eric Adams said Friday “it really appears” hospitalization numbers are “stabilizing.”

"Based on our optimistic views, we appear to be moving in the right direction," he said.

-ABC News' Joshua Hoyos, Matt Foster

Nationwide, more than 157,000 COVID-19-positive patients are currently receiving care -- a pandemic high, according to federal data.

More than 5,200 children are currently hospitalized with confirmed or suspected cases of COVID-19 – also a record high.

On average, over 20,000 Americans are being admitted to the hospital with COVID-19 each day, a figure that's more than doubled over the last month, according to federal data.

It's still not clear how many of these patients were admitted to the hospital for COVID-19 and how many people coincidentally tested positive after they were admitted for other reasons.

About 83% of staffed adult ICU beds are occupied (by COVID and non-COVID patients) -- the highest ICU capacity in one year, according to federal data.

On average, the U.S. is now reporting a record high of more than 782,000 new COVID-19 cases each day, according to federal data.

-ABC News' Arielle Mitropoulos

Uganda reopened its schools to students on Monday after nearly two years, ending the world's longest school closure due to the coronavirus pandemic.

Schools across the East African nation of 44 million people have been fully or partially closed since March 2020, when the pandemic began. The closures affected more than 10 million learners, according to data from the United Nations Educational, Scientific and Cultural Organization (UNESCO).

Save the Children welcomed the reopening of Uganda's schools but warned that "lost learning may lead to high dropout rates in the coming weeks without urgent action."

The London-based charity revealed in a report last November that up to one in five children in low-income countries, including Uganda, had dropped out of school due to rising poverty, child marriage and child labor, which have been exacerbated by the pandemic. In a statement Monday, Save the Children warned of "a 'second wave' of dropouts as returning students who have fallen behind in their learning fear they have no chance of catching up."

To tackle the potential crisis in Uganda, Save the Children has launched "Catch-up Clubs," which assess children and teaches them at the required level to help them regain literacy and other learning, with child protection support and cash assistance for families struggling to send them to school.

"As schools begin to reopen across the country, it is critical that all girls and boys have access to the support they need to successfully return to the classroom," Edison Nsubuga, head of education at Save the Children in Uganda, said in a statement Monday. "Many children have fallen behind in school as a result of the COVID-19 pandemic. Children who are behind in their learning are less likely to unlock their potential as adults. However, when children receive the learning boost they need and have access to quality education, they can reach their full potential."