At the nine shows of the Eurovision Song Contest in Rotterdam, a total of 48 of the 29,875 visitors may be infected with the corona virus, Fieldlab says based on figures made available by various GGDs.
That equates to an average of 1.6 per thousand or over five per show.
A maximum of 3,500 visitors were allowed to attend each show, who had to hand over a negative test certificate of no more than 24 hours old on arrival.
Everyone was placed and had a seat to limit contact moments as much as possible.
In addition, a total of thirteen people were already infected during the event.
In the period that the Song Contest took place, an average of 4.9 per thousand people were infected among the Dutch population.
The figures only include the visitors of the Song Contest and not the crew, volunteers, press and delegation members.
Those statistics are expected to be published by the organization itself later this month.
The Eurovision Song Contest took place from 17 to 22 May. The Italian band Måneskin won with the song
Zitti E Buoni.