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        Vietnam's COVID-19 epidemic situation began to change in late April. Although there were no local COVID-19 cases for more than a month before, this epidemic has not been the same as in ...

        How many people need to be vaccinated for COVID-19 herd immunity?        The current global situation of the COVID-19 epidemic is still severe, and the anti-epidemic pressures vary ...

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

        Since the outbreak of Coronavirus disease (COVID-19) at the beginning of the year, the number of people infected worldwide has reached tens of millions, and the death toll has reached ...
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