<p> The US government has ordered 300 million doses of a potential COVID-19 virus being developed by AstraZeneca and Oxford University and hopes first doses can be made available by October, the Department of Health and Human Services said on Thursday.</p>.<p>"This contract with AstraZeneca is a major milestone in Operation Warp Speed’s work toward a safe, effective, widely available vaccine by 2021," HHS Secretary Alex Azar said in a statement.</p>
<p> The US government has ordered 300 million doses of a potential COVID-19 virus being developed by AstraZeneca and Oxford University and hopes first doses can be made available by October, the Department of Health and Human Services said on Thursday.</p>.<p>"This contract with AstraZeneca is a major milestone in Operation Warp Speed’s work toward a safe, effective, widely available vaccine by 2021," HHS Secretary Alex Azar said in a statement.</p>