Health experts reveal a "defect" in the corona examination with a "nasal swab"
A number of health experts have warned that the current Corona examination technology by nasal swab (PCR) is flawed by a major defect, despite its ability to identify the infection that leads to the "Covid 19" disease.
According to the newspaper «New York Times», this technology is based on the principle of “(yes - no); That is, is the person infected with the infection or is he healthy, but without revealing the level of the virus or the amount of its charge in the human body.
As for the solution proposed by health experts, it is to conduct a rapid examination for Corona, because it is carried out by taking a blood sample from the finger, providing more detailed data.
Controversy arises about the examination and the methods of conducting it after the US Centers for Disease Control and Prevention said that some people, such as those in contact and those without symptoms, may not need to undergo corona tests.
Harvard University virologist Michael Mina criticized this new assessment by the prestigious health authority, describing it as a "step backward" in addressing the pandemic.
The American academic said that it is necessary to have an examination for all people, but through various mechanisms, that is, to avoid adopting only one method to detect infection.
In a step in this direction, the administration of US President Donald Trump announced, last Thursday, its intention to purchase 150 million rapid tests.
In the case of other viruses, the "PCR" examination can reveal the level of the virus’s charge in the human body, but the examination that is being done for the emerging corona at the present time does not include these aspects.
These aspects are important because it is the shipment of the virus in the human body that determines whether it is strongly able to transmit the infection to others.
Identifying this shipment could help health officials identify those who should be subject to more stringent isolation, as well as easing restrictions on those infected with a very limited proportion of the virus.
Earlier, health officials in the states of Massachusetts, New York and Nevada found that 90 percent of those diagnosed with positive had a very small shipment of the Corona virus.
And the matter does not stop at this point, because adopting the principle of the virus shipment may upset the criteria, meaning that a person will not be considered infected unless this shipment exceeds a certain number determined by health experts.
The case is diagnosed with positive in the "PCR" tests, when the number of cycles of the virus's genetic material in the swab reaches the threshold of 37 or 40 cycles, but a researcher at the University of California, Juliet Morrison, says that she is surprised that these people are considered as having 37 or 40 cases. Positive.
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