A study based on a musical show Spain, Which aims to assess the impact of security measures against Covid-19, Showed strong evidence that tests, masks, and ventilation can prevent the virus from spreading indoors.
The study, led by researchers at the German Trias I Pujol University Hospital in Barcelona, said none of the 465 participants in the event tested positive for a polymerase chain reaction (PCR) test taken eight days after the show, compared to two people in the control group who did not attend. .
All participants tested negative for Covid-19 before entering and wore masks during the parade, which was held in a well-ventilated venue in Barcelona in December. The event lasted five hours, with participants spending an average of two hours and 40 minutes inside. Participants noted the physical distance, and the space was about half its capacity.
However, studies like this have also been conducted in Liverpool, at United kingdom“It could lead to a false sense of security,” Julian Tang, a clinical virologist at the University of Leicester, said in an emailed statement. Covid cases in Spain were low at the time of the event and more contagious variants have emerged since then.