During the epidemic, news stories like "multiple negative neo-nucleic acid tests for multiple confirmed cases of NICs" have sparked massive questions and debates: Is the nucleic acid test not working anymore? Or is the virus too cunning?
Neither! In fact, there are many factors that affect the results of the Nucleic Acid Rapid Test.
Experts have proved through many experiments that, among many factors, the rapid results of the New Coronary Nucleic Acid test are mainly influenced by the detoxification concentration of the patient. Only when the patient's detoxification concentration reaches a certain level, it can be detected by means of the New Crown Nucleic Acid Rapid Test.
In the vast majority of cases, it is generally detectable by uninterrupted rapid New Coronary Nucleic Acid testing within 14 to 21 days. This is why the length of quarantine is required to be 14 days. The recently transmitted Delta virus requires even more isolation of 14+7 days for people at high risk.
Due to individual differences, each person's response to the virus and detoxification concentration will vary at different times. In order to avoid missed tests due to such differences, the vast majority of high-risk areas will require 3-6 rounds of large-scale rapid New Coronavirus testing to screen for positive populations, depending on the needs of the outbreak.
In addition to patient detoxification concentration, the sampling site at the time of sampling can also have an impact on the results.
According to research, neo-coronaviruses have high replication levels in the upper respiratory tract (including the nose, throat and pharynx) and are generally found in the epithelial cells of the human respiratory tract in about 96 hours. This is why we need to poke to the throat when we do a pharyngeal swab and to the nasal palate when we do a nasal swab. Only with full access to the respiratory tract can the virus be better extracted and the results of the new crown nucleic acid rapid test be more accurate.
In a large scale multi-round rapid nucleic acid test for new coronas with a huge workload, high efficiency and quality of the rapid nucleic acid test technique for new coronas is also an important factor in the nucleic acid results.
