COVID-19 cases in the Americas increased by 12.7 percent last week from the prior week, the Pan American Health Organization (PAHO) said on May 4, as infections continued to rise in Central and North America.

Following the record surge in COVID-19 cases during the Omicron-driven wave, some 58 percent of the U.S. population overall and more than 75 percent of younger children have been infected with the coronavirus since the start of the pandemic, according to a U.S. nationwide blood survey released on April 26.

Although research is being conducted on Long COVID or Long COVID-19, whose symptoms continue for weeks and months after initial infection, there are very few ongoing clinical trials on treatments. Anecdotally, there has been what appears to be a successful treatment for Long Covid using Pfizer’s antiviral regimen Paxlovid.

Global COVID-19 cases surpassed 500 million on April 14, according to a Reuters tally, as the highly contagious BA.2 sub-variant of Omicron surges in many countries in Europe and Asia.

The BA.2 Omicron subvariant of the coronavirus is responsible for 86% of U.S. COVID-19 cases and more than 90% of infections in the Northeast, according to data on April 12 from the U.S. Centers for Disease Control and Prevention (CDC).

The Biden administration on Wednesday launched a new website to provide a clearinghouse of information on COVID-19 as part of a continuing effort to prepare Americans to live with the coronavirus.

Coronavirus infections in Asia passed 100 million on March 30, according to a Reuters tally, as the region records a resurgence in cases dominated by the BA.2 Omicron sub-variant.

The BA.2 Omicron sub-variant of the coronavirus was responsible for over a third of all COVID-19 cases in the United States in the week ending March 19, according to an estimate from the U.S. Centers for Disease Control and Prevention (CDC) on March 22.

The Omicron variant of the coronavirus is causing a dramatic rise in cases of croup, a dangerous respiratory condition usually seen in babies and toddlers, new data suggest. Additionally, new research sheds light on how a tuberculosis vaccine might help protect against COVID-19.

The BA.2 sub-variant of Omicron was estimated to be 23.1 percent of the coronavirus variants circulating in the United States as of March 12, the U.S. Centers for Disease Control and Prevention (CDC) said on March 15.