Post by account_disabled on Mar 3, 2024 4:05:55 GMT -6
Tests to see whether or not you have been affected by SARS-CoV-2 are the main condition for preventing the pandemic. But how often should the tests be done and who should be checked? More and more types of tests for the control of the corona virus are being introduced to the market. At the end of July, there were 270 different products used to perform the tests worldwide. They are mainly divided into three groups: PCR tests, serological tests (ELISA) and antigen tests. Analyzed is PCR The analysis of whether someone has been infected and can spread the virus to others is mainly done by the method of polymerase chain reaction (PCR), an enzyme that creates certain polymers, especially DNA.
There are also so-called DNA amplification assays, which Brazil WhatsApp Number Data work similarly to PCR assays. In both cases, a sample of saliva is taken from the patient's mouth with the help of a cotton swab. Even coughs from the depths of the lungs are suitable for taking the test. Read also: Wanted by Germany for drugs, the young Albanian is arrested in Italy Transport is suspended in some areas of Germany, workers go on strike A certain part of the genotype, a certain type of gene, obtained from the test is multiplied several times and finally a biochemical process called Agarose-Geleelectrophoresis determines, if the genotype of the virus is present in the test. If the genotype is found in it, then the patient is infected.
If the genotype is not there, it does not mean that the patient is not affected. It may happen that the virus is not present in the saliva test, but is still present somewhere in the body. This perhaps explains why in certain cases patients with COVID-19, who think they are cured, later turn out to be infected when PCR tests are done. It is possible that in these cases the virus was present all along, although it was not found in the test. Infectious disease doctor at Berlin's Charité hospital, Christian Drosten, says it would be like knowing how to catch goldfish in a lake using a fishing net. When you take the net out of the water and see that there are no fish in it, it does not mean that there are no fish in the lake.
There are also so-called DNA amplification assays, which Brazil WhatsApp Number Data work similarly to PCR assays. In both cases, a sample of saliva is taken from the patient's mouth with the help of a cotton swab. Even coughs from the depths of the lungs are suitable for taking the test. Read also: Wanted by Germany for drugs, the young Albanian is arrested in Italy Transport is suspended in some areas of Germany, workers go on strike A certain part of the genotype, a certain type of gene, obtained from the test is multiplied several times and finally a biochemical process called Agarose-Geleelectrophoresis determines, if the genotype of the virus is present in the test. If the genotype is found in it, then the patient is infected.
If the genotype is not there, it does not mean that the patient is not affected. It may happen that the virus is not present in the saliva test, but is still present somewhere in the body. This perhaps explains why in certain cases patients with COVID-19, who think they are cured, later turn out to be infected when PCR tests are done. It is possible that in these cases the virus was present all along, although it was not found in the test. Infectious disease doctor at Berlin's Charité hospital, Christian Drosten, says it would be like knowing how to catch goldfish in a lake using a fishing net. When you take the net out of the water and see that there are no fish in it, it does not mean that there are no fish in the lake.