For the first section are European and American kits that have evolved to become a positive control 4 genes for the virus, including the human control gene. Either B Actin or RNasep is accurate kits that depend on a positive reading of less than 35 cycle and these clusters are not issued because they meet the local markets of producing countries
The second type, which is currently available and used in all Arab countries, because it is the only available for export, which are Chinese, South Korean, Singaporean, and Thai. These kits depend on one positive control of the virus and do not contain human control. The similarity of this only gene to the virus is very high with those in The Beta corona
The importance of having human control in the mass is to measure the efficiency of extracting the genetic material of the virus, which is the first stage and important in examining the RtPCR
It is not sufficient to have a gene or two genes in the kits to be accurate examination must be 3 genes for the virus in addition to the human gene B Actin or RNasep to ensure that there is no cross in the examination with the Beta corona group as the 3 genes must give a positive result positive for the test approval that it positive .
In the Asian group C group bulletins they adopted the positive result when the CT is from 36 to 40 and this result is often wrong because European and American cats adopt the CT less than 35 as the cross rate after the 35th cycle is very high with beta viruses Corona This late CT was placed to cover up double cuff
Please have a look at the following link:
https://www.forbes.com/sites/johndrake/2020/07/08/four-theories-about-why-americas-second-covid-wave-isnt-quite-as-deadly-as-the-first-yet/#7a06e66f180c
Increasing the number of infections with the Coronavirus might be due to its highly contagious nature.
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