As of 1 June, anyone in the Netherlands with (mild) symptoms can be tested for COVID-19 in the GGD test lanes. People can sign up for a test, or be tested for purposes of source and contact tracing. From that point until 15 June at 15:00, over 113,800 tests were administered at the GGD test sites.
The results are known for over 103,400 of these tests: 1.7% of the people tested were positive. Healthcare workers were tested over 5700 times in the test lanes since 1 June, and 1.2% of those tests were positive. There are regional differences in the percentage of positive tests (see figure).
Figure. Percentage of positive tests at GGD test sites, since 1 June. Source: CoronIT
Source and contact tracing
The percentage of coronavirus-positive tests is highest in people with symptoms who were tested in the context of source and contact tracing: 15.8% of over 1,700 tests. These are people who had been in contact with a confirmed COVID-19 patient.
A number of tests were administered to children up to 18 years old who were not tested in the context of source and contact tracing. More than 3,500 tests were administered to children born in or after 2014 (0 to 5-6 years old), and 0.5% were positive. More than 2,500 tests were administered to children born between 2008 and 2013 (5-6 to 11-12 years old), and 0.5% were positive. More than 2,000 tests were administered to children born between 2002 and 2008 (11-12 to 17-18 years old), and 1.8% were positive. These results correspond with the current understanding based on other data sources, which indicates that the risk of that children will contract COVID-19 increases with age.