In the past, diagnosing someone for SARS-CoV-2(COVID-19) infection involved inserting a long cotton swab deep into the sinuses or mouth to provide a sample of the nasopharyngeal or oropharyngeal mucosa, and then conducting viral tests on the collected material. qualitative or quantitative detection.
But the process is not ideal:
1. It may cause extreme discomfort to the patient, resulting in a poor user experience;
2. The quantity of mucus obtained by each sampling varies greatly, cannot be precisely controlled, and cannot be compared between consecutively collected samples;
3. Standard sampling steps are difficult to quantify;
4. The sampling process may cause coughing or sneezing, posing risks to healthcare workers.
And saliva sampling has great advantages:
1. It is non-invasive, does not harm the human body, and will not cause discomfort to the user;
2. It can provide a relatively consistent number of samples, which can be accurately controlled, which is conducive to comparing samples;
3. The sampling steps are simple and easy to quantify;
4. The tested person can take samples independently, and the risk to medical staff is low.
Saliva analysis is a sensitive and reliable method for detecting 2019-nCoV infection, and it will be particularly suitable for testing for 2019-nCoV in countries or regions that lack nasopharyngeal swabs, personal protective equipment and trained health care personnel.
Post time: 2023-11-20 16:51:13