On Tuesday, March 2, U.S. President Joe Biden offered an update on the distribution of COVID-19 vaccines across the country.*

Biden announced that the U.S. is "now on track to have enough vaccine supply for every adult in America by the end of May." 

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Just three weeks ago, the president said that all American adults would be able to receive a vaccine by the end of July. 

He has now pushed that date forward. "That's progress," he said.

This updated timeline comes as a result of a new partnership between Johnson & Johnson and Merck which is expected to increase Johnson & Johnson's vaccine production significantly. 

Meanwhile, Canadian Prime Minister Justin Trudeau has also made a promise regarding when Canadians will be able to receive their COVID-19 vaccinations. 

Trudeau says that every Canadian who wants a vaccine will be able to get one by September. 

He has reiterated several times that the country is on track to make that happen.

*This article has been updated.