Allowing people to mix COVID-19 vaccines could cut into Pfizer and Moderna's revenue next year - MarketWatch
Coronavirus: Week of Oct. 10 to Oct. 16, U.S. OKs overseas arrivals who mixed their vaccines - Nikkei Asia
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Germany recommends mixing Covid vaccines, saying it gives 'significantly superior' immune response | Daily Mail Online
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News updates from October 20: US approves 'mix and match' vaccines, PayPal weighs Pinterest purchase, Bundesbank chief Weidmann to step down | Financial Times
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