![](https://images.news18.com/ibnlive/uploads/2021/05/1622438614_2021-05-29t172154z_1_lynxnpeh4s072_rtroptp_4_health-coronavirus-paris-concert.jpg)
Two groups of people were selected for the experimental event. The first comprised 5,000 subjects who were allowed to attend the concert after taking a COVID-19 test last week and then another on the day of the event.
from Top Buzz News- News18.com https://ift.tt/3fVsaZV
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