More than 117,000 confirmed cases of COVID-19 among children were reported in the United States last week, representing a 10% increase in cases between Jan. 21 and Feb. 4, according to a report released Monday by the American Academy of Pediatrics and the Children's Hospital Association.

The report, which compiles state-by-state data on infections among kids, found that 2.9 million children have tested positive for COVID-19 nationwide since the start of the pandemic. In total, children represent 12.9% of all cases in U.S. states that report COVID-19 data by age.

ABC News' Arielle Mitropoulos contributed to this report.

Facebook announced Monday a global campaign to promote authoritative COVID-19 sources and push back on disinformation.

The effort will including helping people find out where and when to get vaccinated, expanding the social media company's efforts to remove false COVID-19 information from Facebook and Instagram, and giving $120 million in advertising credits to health ministries, NGOs and UN agencies.

Facebook also said it would provide data for education to help build trust in COVID-19 vaccines, as well as to inform vaccine delivery efforts.

ABC News' Mary Kathryn Burke contributed to this report.

Ten percent of Americans, or 31.6 million people, have received one or more doses of the COVID-19 vaccine, according to a U.S. Department of Health and Human Services planning document obtained by ABC News.

Three percent of the population, or 9.1 million people, have gotten both shots of the two-dose vaccine, according to the document.

U.S. President Joe Biden has pledged to get 100 million shots into Americans' arms during the first 100 days of his presidency. Since his Jan. 20 inauguration, 24.6 million doses have been administered.

ABC News' Josh Margolin and Brian Hartman contributed to this report.

U.S. Rep. Ron Wright, R-Texas, died Sunday after contracting COVID-19 last month, his office confirmed in a statement Monday.

Wright, who had lung cancer, was diagnosed with the disease on Jan. 21 and admitted to Baylor Hospital in Dallas. He was 67.

"Over the past few years, Congressman Wright had kept a rigorous work schedule on the floor of the U.S. House of Representatives and at home in Texas’ Congressional District 6 while being treated for cancer," his office said.

Wright is the second American lawmaker to die after testing positive for COVID-19. Luke Letlow, Louisiana's incoming Republican congressman, died at age 41 in late December, just days before he was due to be sworn in.

ABC News' Mariam Khan contributed to this report.

Major U.S. pharmacy chains are rolling out their COVID-19 vaccination programs this week, as part of the first phase of the Biden administration's Federal Retail Pharmacy Program for COVID-19 Vaccination.

The program is a collaboration between the federal government, states and territories, and 21 national pharmacy partners and independent pharmacy networks to increase access to COVID-19 vaccinations across the country. The federal government will send an initial shipment of 1 million doses of COVID-19 vaccines to 6,500 locations across the country on Feb. 11.

Starting Tuesday, Walgreens will begin accepting appointments for COVID-19 vaccinations as early as Friday, the company told ABC News in an exclusive announcement on "Good Morning America." Health care workers, people over the age of 65 and individuals with preexisting conditions will be prioritized.

"We're just very excited to transition from Phase 1A to this next population and offer the vaccination to the communities we serve every single day," Rina Shah, vice president of pharmacy operations at Walgreens, told ABC News.

However, the Walgreens rollout will be slow, starting in just 15 U.S. states and jurisdictions with limited vaccine doses and appointments available.

Meanwhile, CVS Pharmacy said it will begin accepting appointments on Thursday, with shots going into arms as early as Friday.