Global supply of COVAX hit due to coronavirus crisis in India, USAID tells lawmakers

"The biggest issue for them right now is that there are many parts of the world where one shot has been dispensed to, for example, health workers or frontline workers. And the second shot has not been forthcoming because the expected supply from India had to be pulled back due to the crisis in India," Power said.

"It is in our interest that health workers and frontline workers get vaccinated everywhere in the world as a foundation for larger-scale vaccination. I think COVAX''s biggest challenge so far has been a lack of financing, lack of supply, more than any issues with country selection," she said.

Last week, President Joe Biden announced that the United States is looking to donate 80 million vaccine doses by the end of June, which is five times more than what any other country has donated to COVAX.

Senator Chris Coons said the variant that emerged in India is far more transmissive than the base variant. It has just made it to his home state of Delaware and is circling the world, he said.

"We face an uncertain future as more and more variants will develop that could be both more transmissive and more lethal," the Delaware senator said.

Power said the main challenge is the supply of these vaccines.

"The key is ensuring that vaccines are available at scale and at cost. So we are also in dialogue with the pharmaceutical companies to try to ensure that a public good like vaccination, like pandemic prevention and response is resourced.

"But the biggest challenge that we face is just a shortage of supply, which I think these donations (by the US) will begin to address. But we hope that the G7 and other international gatherings will allow other countries also to step up," she said.

At a separate Congressional hearing, Rochelle Paula Walensky, director of the Centers for Disease Control and Prevention, told lawmakers that over the last year, the US has trained more than 10,000 infection control preventionists in India.

"When it came time and India was having challenges, we were able to mobilise those collaborations. We were able to rapidly get oxygen canisters to India. Our work in the CDC is really in our technical surveillance, our technical advice, our technical and scaling up capacity," she told members of the House Appropriations Subcommittee on Labor, Health and Human Services, and Education.

The CDC has had a regional office in India for about two decades now, Walensky pointed out.

Goldman Sachs CEO David M Solomon told the members of the Senate Banking, Housing and Urban Affairs Committee that his heart goes out to the people of India and others around the world who continue to suffer from the virus.

Goldman Sachs has announced an additional USD 10 million commitment to support the relief-and-recovery efforts in India, which is home to three of its offices and thousands of its people, he said.

"Our funding will be deployed to support frontline health facilities that are leading the fight against COVID-19, including ongoing vaccination efforts. It will also be used to support initiatives promoting mental health in several cities across India and to support communities with economic recovery," Solomon said.

The COVID-19 Vaccines Global Access or COVAX is a worldwide initiative aimed at an equitable access to COVID-19 vaccines directed by Gavi, the Vaccine Alliance, the Coalition for Epidemic Preparedness Innovations and the World Health Organization (WHO).