The United States plans to send roughly 4 million doses of AstraZeneca's COVID-19 vaccine that it is not using to Mexico and Canada in loan deals with the two countries, yielding to requests to share vaccines with allies. #AstraZeneca #COVIDVaccines #US #Mexico #Canada #COVID19 #News #Reuters Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en