1. The control line is coloured
The test was carried out successfully. At the time of testing, no antibodies are detected (yet). This is because you have not (yet) been in contact with the Covid-19 virus or because you are still in the incubation period when you get tested. It can take up to 14 days before symptoms actually appear. During this period you may infect others, even if you do not experience any symptoms.
It is also possible that you are infected but that you do not produce antibodies due to severe weakness or possible medication.
Advice: test again after 14 days or when there are complaints or symptoms and always follow the RIVM guidelines.
2. The control line and the lgM are coloured
When you get this result with the test, it means that an acute/primary infection of the Covid-19 virus has been detected, you have then produced antibodies and they may still be produced. This result appears about 3-7 days after the first symptoms appear.
Advice: you are currently contagious to others. If you tested positive and were found to be infectious to others, read the following question in the FAQ to find out what you should do.
3. The control line, lgM and lgG are coloured.
This result of the test means that you have been in contact with Covid-19 and that your body has produced antibodies, and that it still produces antibodies. This may be a second (secondary) infection or a transitional phase. This occurs from the 7th day onwards and the tested will therefore remain contagious to others.
Advice: you are currently contagious to others. In the next question, read what you should do if you have tested positive and have been found to be infectious to others.