- Delaugerre C
- Foissac F
- Abdoul H
- et al.
take on the challenge of solving these puzzles, by comparing SARS-CoV-2 positivity rates (using RT-PCR saliva data on day 7 after the concert) in those who attended a large live concert on the 29th May 2021, in Paris and among non-participants. They assessed compliance with wearing a mask using an artificial intelligence tool. This is an ambitious, thoughtful and well-designed study and the authors address important practical questions that have major societal ramifications.
The results showed no significant increase in the risk of transmission of SARS-CoV-2 in participants compared to non-participants. Day 7 RT-PCR was positive for eight of 3917 participants (0.20%: 95% CI, 0.09-0.40) and three of 1947 non-participants (0.15% 0.03-0 45). Global mask adoption among spectators was estimated at 91.4%.
- Jonsdottir HR
- Bielecki M
- Siegrist D
- BÃ¼hrer TW
- ZÃ¼st R
- Deuel JW
Although less than 10% of the participants had received two doses of the vaccine at the time of the concert, more than half had received at least one dose of the vaccine. The seroprevalence of virus neutralizing antibodies was not assessed in this trial, but some degree of herd protection can certainly be postulated since more than half of the population studied had received at least one dose of vaccination and one dose. fifth had previously suffered from COVID-19.
- Dinnes J
- Deeks JJ
- Berhane S
- et al.
and a bias in favor of asymptomatic infections with low viral loads in the exposed group cannot be ruled out due to the prevalent immunity and assumed low viral load to which they were exposed during the concert.
- Hendrix MJ
- Walde C
- Findley K
- Trotman R
Universal use of the mask has proven to be effective. During the Paris concert, the wearing of the mask was compulsory and supervised and a membership of more than 90% was confirmed. The use of an artificial intelligence tool to monitor masking compliance has been effectively used in airports,
- Elachola H
- Ebrahim SH
- Gozzer E
and was also successful at the Paris concert and could be applicable to other indoor events. What if alcohol and other drugs were involved? Alcohol is a strong entactogen, and alcohol consumption can also lead to reduced mask compliance. As alcoholic drinks are prohibited during the PRINTEMPS concert, the strong wearing of a mask cannot be generalized to concerts serving alcoholic drinks.
- Tang JW
- Marr LC
- Li Y
- SJ dancer
and air quality cannot be underestimated, especially in the context of indoor concerts. Air replacement systems are essential for removing exhaled virus-laden particles. More research is needed in aerosol science and in creating better ventilation systems, and applying this research in the context of concerts and indoor environments will be a game-changer for such events.
As of May 2021, most SARS-CoV-2 infections in France were caused by the alpha variant. The delta variant is more transmissible and associated with higher viral densities. Would the results of the SPRING study be different now with delta dominance and circulation of highly transmissible variants of SARS-CoV-2? Hopefully not, as transmission barriers such as masks and ventilation will also protect against variants, and that bodes well for the concerts to continue. This study is hopeful, but caution is also in order. The SPRING concert represents an epidemiologically near optimal setting, involving mask warrants, the ban on alcoholic beverages, universal testing before the event and a study population of healthy young adults not prone to severe COVID-19 , as well as the circulation of a less transmissible. viral variant – all factors in favor of a low rate of transmission.
And the rhythm continues.
We do not declare any competing interests.
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And the rhythm continues.
The sound of Los Angeles records,
Los Angeles, CA1979
Posted: November 26, 2021
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