Incidence of Infection Reported by COVID-19 in Attendees of a Commercial Music Concert
Incidence of Infection Reported by COVID-19 in Attendees of a Commercial Music Concert
From the beginning of the pandemic caused by SARS-CoV-2, most events with massive
 participants have been canceled due to being considered high-risk events for the SARS-CoV-2
 transmission. It has been detected that asymptomatic people infected by SARS-CoV-2, are
 playing an important role in the contagious in these kinds of events. The economic losses
 arising from the closure of these activities, mainly those related to culture and musical
 performances are around 2.5 billion euros a Catalonia, and a considerable loss of jobs in
 this sector.

 Developing strategies of cribrate of infected people by SARS-CoV-2 asymptomatic or not
 diagnosticated and with a potential transmission of the virus is the key to perform cultural,
 sport, etc. massive events with all the security. The objective is to exclude infected people
 with a a high potential of transmission.

 It is needed to use versatile tests for this objective, so the test must have a high
 sensibility to detect infected people, the test has to be easy to manipulate without
 requiring a high technology of the laboratory hospitals, neither prolongated to obtain a
 result and that has a low cost. The rapid SARS-CoV-2 antigen screening tests are best suited
 for this purpose.

 On 27th March, a musical concert will be performed at Palau St Jordi (Barcelona) with 5000
 attendees and with all the SARS-COV-2 safety measures by the "Secretary General of Health of
 the Generalitat de Catalunya" a (mandatory wearing a mask during the event, restricted
 outdoor areas of bar and smoking enhanced ventilation of the whole indoor area and avoiding
 queues.). This study wants to assess the incidence of SARS-CoV-2 infection reported to the
 health system among the attendees of this commercial concert during the 14 days following the
 event, also it will be evaluated the clinical evolution of the possible infections during the
 concert.
From the beginning of the pandemic caused by SARS-CoV-2, most events with massive
 participants have been canceled due to being considered high-risk events for the SARS-CoV-2
 transmission. It has been detected that asymptomatic people infected by SARS-CoV-2, are
 playing an important role in the contagious in these kinds of events. The economic losses
 arising from the closure of these activities, mainly those related to culture and musical
 performances are around 2.5 billion euros a Catalonia, and a considerable loss of jobs in
 this sector.

 Developing strategies of cribrate of infected people by SARS-CoV-2 asymptomatic or not
 diagnosticated and with a potential transmission of the virus is the key to perform cultural,
 sport, etc. massive events with all the security. The objective is to exclude infected people
 with a a high potential of transmission.

 It is needed to use versatile tests for this objective, so the test must have a high
 sensibility to detect infected people, the test has to be easy to manipulate without
 requiring a high technology of the laboratory hospitals, neither prolongated to obtain a
 result and that has a low cost. The rapid SARS-CoV-2 antigen screening tests are best suited
 for this purpose. These tests have shown a sensitivity close to 99% to detect infectious
 people who have a high viral load of SARS-CoV-2. No viral isolation has been demonstrated in
 any culture of samples of patients infected with SARS-CoV-2 with a Ct threshold (cycle
 threshold) in the test RT-PCR greater than 30, which is considered to delimit the
 transmitting potential of the infected

 On 27th March, a musical concert will be performed at Palau St Jordi (Barcelona) with 5000
 attendees and with all the SARS-COV-2 safety measures by the Secretaria General de Salut de
 la Generalitat de Catalunya (mandatory wearing a mask during the event, restricted outdoor
 areas of bar and smoking enhanced ventilation of the whole indoor area and avoiding queues.).
 This study wants to assess the incidence of SARS-CoV-2 infection reported to the health
 system among the attendees of this commercial concert during the 14 days following the event,
 also it will be evaluated the clinical evolution of the possible infections during the
 concert.
Inclusion Criteria:

 -  Adults (> 18 years and under 65) attending the commercial music event scheduled at the
 Palau Sant Jordi

 -  Sign informed consent, including an authorization for the collection of data from the
 electronic health system of the Catalan System of Health on the notification of
 COVID-19 infection during the 14 days following the event or authorization to be
 contacted by telephone by the medical team, if necessary, for complete information on
 SARS-CoV-2 infection.

 Exclusion Criteria:

 -  Minors (<18 years)