Flu is surging across most of the U.S. But, amid an early, harsh season, there is a glimmer of promising news: The flu shot may be more effective than experts predicted...

Dr. Vinay Prasad, the director of the Food and Drug Administration`s vaccine division, sent a memo to staff that linked children`s deaths to the COVID-19 vaccine, but did not provide data to back the claim...

© Getty Images / Chris Jackson The billionaire calls for massive government investments to prepare for potential outbreaks that could be deadlier than Covid-19 Software magnate Bill Gates has raised the specter of future viruses that could be more lethal than Covid-19, saying rich countries should ramp up vaccine funding to brace for potentially catastrophic outbreaks...

This picture taken on November 05, 2021 shows a child receiving a dose of COVID-19 vaccine in Los Angeles, California...

Toddlers born during the pandemic scored lower on some skills development tests than those born earlier...

© Getty Images / Joe Raedle More than 4...

The Pentagon building is seen in Arlington, Virginia, US, October 9, 2020...

FILE PHOTO © AFP / Mohamad Ali Harissi The United Arab Emirates has allowed international travel to the jabbed and boosted only Unvaccinated UAE citizens will be banned from traveling abroad starting January 10, according to local media, citing the country’s crisis management agencies...

Indian officials have told CNN that the country will provide Afghanistan with one million doses of Covaxin produced in India by Bharat Biotech...

A police officer stands next to boxes of expired AstraZeneca coronavirus vaccines as they are destroyed by a bulldozer, in Abuja, Nigeria, December 22, 2021...

Donald Trump squares off against Democratic challenger Joe Biden in a 2020 presidential debate...

© Evan Vucci/Pool via REUTERS Billionaire Bill Gates has found little sympathy after saying he has canceled most of his holiday plans over the Covid variant Omicron, while also providing advice on how the pandemic can end in 2022...

Handout file photo released by the Venezuelan presidency shows Venezuelan President Nicolas Maduro at the Bolivarian Alliance for the Peoples of America (ALBA) Summit at the Miraflores presidential palace in Caracas, on June 24, 2021...

FILE PHOTO: Britain’s Health Secretary Matt Hancock holds a news conference at 10 Downing Street, amid the coronavirus disease (COVID-19) outbreak, in London, Britain March 17, 2021...

In this file photo taken on March 4, 2021, vials of the Pfizer-BioNTech vaccine are seen at the Belisario Porras school San Francisco neighbourhood in Panama City...

The file photo shows Pfizer-BioNTech COVID-19 vaccine bottles...