A COVID-19 infection can be diagnosed from upper respiratory tract samples through the oropharynx and nasopharynx. Via the lower respiratory tract through samples from sputum and bronchial fluid. A samples of the upper respiratory tract; the oropharynx (throat) and nasopharynx (deep nose) swab, is easy to collect. The sample should be collected within the first few days of the onset of symptoms, as the RNA positive rate peaks 7 to 10 days after the onset of symptoms and then steadily declines. It is important to collect the swabs properly, by sampling from the posterior rhinopharyngeal tonsil area.

An IDSA* study confirms CDC (Centers for Disease Control & Prevention) guidelines identifying NP (deep nasal swab) and OP (throat swab) swabs as acceptable samples for SARS-CoV-2 RNA testing. For testing people who are already further along in the disease course (up to 5-6 days after infection), an NP smear could be a relatively more sensitive type of sample. About 6-7 days after the onset of the disease (infection), testing for IgM/IgG antibodies is a good option.

*IDSA (Infectious Diseases Society of America). United States, January 2020–February 2020. Performance of Oropharyngeal Swab Testing Compared With Nasopharyngeal Swab Testing for Diagnosis of Coronavirus Disease 2019.

The head is bent slightly back. With the help of a spatula, the tongue can be held down for a short while. A swab is taken at the back of the throat with a cotton swab. This can itch for a while and cause a strange feeling. It's not painful. The smear goes into a tube with liquid. The test tube is then immediately labeled and analyzed.

So: Your test result within 8 – 12 hours on a recognized travel certificate (in English)
Benefit: Always available and help with scheduling
Useful: The right test for your personal situation through sound advice
Ideal: Professional and personal

You can request the PCR test Keelswab as a consumer, entrepreneur, traveler and as a parent of a child or young person. You can schedule a purchase directly via our online reservation system. Click on the button below for this.

For companies we offer a purchase package that is specifically applicable to the situation and conditions within the company. For this we have regular contact with the contact person or company manager. Also during an outbreak or when contamination is suspected, we are happy to offer the best care through a quick analysis followed by the right advice. Customized care and unburdening, you test at Team Corona Preventief.

For children, youth, vulnerable young people and the elderly, the purchase is specifically adapted to the situation and needs. Personal guidance by our qualified care worker is guaranteed.