Nurse Kath Olmstead prepares a shot as the world's biggest study of a possible COVID-19 vaccine, developed by the National Institutes of Health and Moderna Inc., gets underway Monday, July 27, 2020, in Binghamton, N.Y. U.S. biotech firm Moderna says its vaccine is showing signs of producing lasting immunity to COVID-19, and that it will have as many as many as 125 million doses available by the end of March. THE CANADIAN PRESS/AP-Hans Pennink
New data shows Moderna's COVID-19 vaccine is showing signs of producing lasting immunity.
The American biotech firm says it will have as many as 125 million doses available by the end of March.
Health Canada is expected to approve Moderna's candidate shortly, and Ottawa has signed an agreement with the drugmaker to buy at least 20 million doses.
Currently only two million doses are supposed to arrive in the first three months of 2021, but the company says it should have 15 to 25 million doses available for non-U. S. deliveries before the end of March.