The European Union expects to have received more than a billion doses of Covid-19 vaccines by the end of September from four drugmakers, according to a document presented to EU leaders on Tuesday.

The Biden administration is releasing $7.4 billion to bolster the nation’s healthcare workforce amid the ongoing Covid-19 pandemic and to prepare for future epidemics and health challenges, the White House said in a statement on May 13.

The United States had fully vaccinated 101,407,318 people for Covid-19 as of the morning of April 30, accounting for 30.5 percent of the population, the U.S. Centers for Disease Control and Prevention said.

The U.S. Food and Drug Administration requested that Emergent BioSolutions temporarily pause production of ingredients for the Johnson & Johnson Covid-19 vaccine at their facility in Baltimore.

Everyone in the United States aged 16 years and above is now eligible for Covid-19 vaccination, the U.S. Centers for Disease Control and Prevention (CDC) said on April 20. People aged 16 years and above who have underlying medical conditions that increase the risk of serious, life-threatening complications from Covid-19, should be among those offered the vaccine first.

Just more than half of U.S. adults have received at least one Covid-19 vaccine dose, data from the U.S. Centers for Disease Control and Prevention showed on April 18, with nearly 130 million people aged 18 years or more having received their first shot.

The United States had administered 205,871,913 doses of Covid-19 vaccines in the country as of the morning of April 17 and distributed 264,499,715 doses, the U.S. Centers for Disease Control and Prevention said.

A follow-up study of 33 people who received Moderna Inc.’s Covid-19 vaccine in early trials show the antibodies it induced are still present six months after the second dose.

The U.S. government hit the accelerator on shipments of Covid-19 vaccines after a month of largely stagnant weekly deliveries, giving states the doses they say they need to finish vaccinating priority groups and open shots to all adults in the coming weeks.

One dose of Pfizer COVID-19 vaccine offers an immune response similar to that generated by infection and could also offer protection from variants to people who have previously had the virus, a British study said on March 26.