Spanish scientists have published a clinical study investigating the effectiveness of same-day rapid antigenic tests (Ag-RDT) used for the detection of Kovid-19 at a mass indoor concert. According to the results of the study, which is a first at the clinical level; 465 people who had a negative rapid Kovid-19 test and participated in the study did not catch Kovid-19 after the concert, despite the lack of social distancing.
A separate clinical study was conducted during the concert, which was held in the city of Barcelona on December 12, 2020, at the Sala Apolo concert center to assess the risk of transmission of Kovid-19 and which thousands of people attended. . With the scientific study published in the Lancet medical journal; Combined with rapid antigen testing, a mask and an active ventilation system, which give results on the same day, it has been determined that group activities to be held in closed places are safe.
THE RESULT IS GIVEN TO PARTICIPANTS AFTER 15 MINUTES
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Spanish scientists applied the Ag-RDT test to 465 people in the experimental group, aged 18 to 59, in the morning before entering the concert. The participants installed two apps on their smartphones, a test result and a radar app for contact tracing. The result arrived on each participant’s phone as a notification 15 minutes later.
PCR TEST AND CELL CULTURE ANALYSIS PERFORMED FOR CROSS-CONTROL
Frontal body temperature was measured at the entrance to the concert hall of all participants who wore N95 masks at the entrance to the concert. Participants were allowed to sing and dance, as an option, without physical distancing, in the concert hall with a capacity of 900 people, provided they did not remove their masks. Indoor temperature and carbon dioxide measurements were taken regularly.
Samples from these individuals were also subjected to PCR testing and cell culture analysis for cross-referencing. It was determined that only one person in the control and experimental group, whose rapid antigen test was negative, had a positive PCR test and that analysis of the cell culture of both groups gave negative results like the rapid test.
PRELIMINARY EVIDENCE OF SECURITY OF INDOOR MASS EVENTS PROVIDED
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Spanish scientists said the study provides preliminary evidence for the safety of indoor public events during a COVID-19 outbreak as part of a comprehensive preventive response. The efficiency obtained from the measured rapid test data; It was said that this would help restart cultural activities that were suspended during Kovid-19.
It was explained that the main advantages of Ag-RDT include low price, no high-tech lab shipment, and delivery of results in a short time.
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Scientists noted that although Ag-RDTs have lower overall sensitivity than other Covid-19 tests as a result of the clinical trial, a growing body of evidence indicates that they are suitable for identifying people who could potentially transmit the virus.