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How many people need to be vaccinated for COVID-19 herd immunity? The current global situation of the COVID-19 epidemic is...

As people's understanding of the covid-19 vaccine deepens, more and more people are willing to get covid-19 vaccine. Want to...

Since the outbreak of Coronavirus disease (COVID-19) at the beginning of the year, the number of people infected worldwide has...

Many tourists travel to Japan, and one of the places they love to go to is drugstore. It can be...