| | Former President Barack Obama returned to the White House on Tuesday for the first time since leaving office in 2017 to tout the benefits of his signature healthcare law and bolster his friend and former governing partner, President Joe Biden. | | | President Joe Biden on Tuesday tasked the U.S. health department with developing a national action plan to tackle the looming health crisis of long COVID, a complex, multi-symptom condition that leaves many of its sufferers unable to work. | | | The U.S. health regulator said on Tuesday GlaxoSmithKline and Vir Biotechnology's antibody therapy was no longer authorized as a COVID-19 treatment, with data suggesting it was unlikely to be effective against the dominant Omicron sub-variant in the country. | | | Greece will offer a second COVID-19 booster dose for people aged 60 and above, at least four months after the previous shot, Greek health officials said on Tuesday. | | | UnitedHealth Group Inc and Change Healthcare have agreed to extend the closing date of their merger by another nine months to Dec. 31, the companies said on Tuesday, more than a month after the U.S. Justice Department sued to stop the deal. | | | An official Canadian panel has provided initial recommendations on the use of a second COVID-19 vaccine booster dose for some Canadians as infections rise in many parts of the country, Health Canada said on Tuesday. | | | The prospects of a $10 billion U.S. COVID-19 relief package were complicated on Tuesday by Senate Republicans' demand to link the bill to a vote on border restrictions and concerns by some House Democrats that the proposal did not provide international aid. | | | Quebec will require masks to be worn in indoor public spaces for all of April, delaying a plan to relax the measure by the middle of the month as it and other Canadian provinces face a new COVID-19 wave, a top public health official said on Tuesday. | | | COVAX, the global project to share COVID-19 vaccines, and the African Union have declined options to buy additional doses of Moderna's shot, as developing nations struggle to allocate supplies. | | | It will take $15 billion in grants this year and another $10 billion annually after that to establish and maintain an adequate toolkit to respond to COVID-19 and address future pandemic threats, according to four organizations focused on global health and the economy. | | | | |