https://www.siliconvalley.com/2021/03/10/biden-to-announce-plans-to-purchase-100-million-more-johnson-johnson-coronavirus-vaccine-doses/

President Joe Biden will announce Wednesday that he is directing the US Department of Health and Human Services to purchase an additional 100 million doses of the Johnson & Johnson Covid-19 vaccine, a White House official confirms to CNN.

The administration and the pharmaceutical giant still need to negotiate when these 100 million doses will be available, another person familiar with the matter told CNN. This source predicts it will likely happen later this year as Johnson & Johnson works to ramp up production.