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Russia moves troops near Ukraine: analysts explain what is behind the build-up

WHO warns of global increase in COVID cases, deaths as the world’s ‘highest infection rate’ approaches

Scientists are investigating possible link between Johnson & Johnson, AstraZeneca vaccine blood clot problems

High school students are given the COVID-19 vaccine. What do they think?

This is why COVID cases in Toronto are on the rise, despite early lockdown

What You Should Know About COVID-19 Vaccine Passports and Why They Are Controversial

COVID-19 Origins: What You Need to Know About the Search for the Beginning of the Virus

Research shows a promising development in the hunt for HIV vaccine

Illinois bar linked to 46 COVID-19 cases, school shutdown: CDC

Illinois bar linked to 46 COVID-19 cases, school shutdown: CDC