If you have tested positive for coronavirus, the GGD will carry out source and contact tracing with you to stop the virus spreading further.
Contact tracing by the municipal health service (GGD)
Someone from the GGD will call you for the purpose of contact tracing. Together you will try to establish:
- who infected you (the source)
- who you have had contact with, and
- which people you might have infected.
If the number of new cases in the Netherlands is increasing rapidly or very high, the GGD may adopt a different approach.
What do I need to do for the contact tracing?
While you’re waiting for your test results make a list of everyone you’ve had contact with recently, starting from 2 days before you first developed symptoms.
Contacts for your list
When you make your list, focus on people who
- were within 1.5 metres of you
- for longer than 15 minutes (in total) in a 24-hour period.
Contact tracing by the GGD
The GGD will investigate:
- People in your household
The GGD will instruct them to stay home (self-quarantine) and to avoid contact with you while you have coronavirus. They will also have to get tested, even if they have no symptoms. See the instructions for people living with someone infected with coronavirus issued by the National Institute for Public Health and the Environment (RIVM).
- Close contacts
Close contacts are people who were within 1.5 metres of you for longer than 15 minutes (in total) in a 24-hour period. It does not have to be 15 consecutive minutes. What counts is the total number of minutes within a 24-hour period. Someone from an at-risk group who was within 1.5 metres of you for less than 15 minutes is also a close contact. Close contacts include people you hugged, kissed or in whose face you coughed. Close contacts must self-quarantine and get tested, even if they have no symptoms. See the instructions for close contacts issued by the National Institute for Public Health and the Environment (RIVM).
- Other contacts
Other contacts are people who were in the same space as you, such as in an office, classroom or conference room, for more than 15 minutes. However, the distance between you and this co-worker or classmate (for example) was greater than 1.5 metres. They do not have to self-quarantine, but they can get tested, even if they have no symptoms. The GGD will give you information to pass on to these ‘other contacts’. See the instructions for other contacts issued by the National Institute for Public Health and the Environment (RIVM).