One study has found that children infected with coronovirus in primary school-aged children have a much lower viral load than adults with Kovid-19.
Viral load – the amount of virus a person experiences in his nose and throat – is thought by some scientists to be linked to an increased infection, although these claims are debated.
Data from public health officials in the Netherlands show that there is a 16-fold difference in the amount of virus between children older than 80 and younger than 12 years.
The researchers said rapid antigen testing, like the touted 15-minute screening used in schools and airports, is also less accurate for children than adults.
Scroll down to video
This graph shows the Cp values for chronovirus patients by age. Cp is a measure of how many PCR analyzes that amplify a genetic signal are required to detect the SARS-CoV-2 signal. The higher the number, the lower the viral load. Researchers wrote, ‘There is a median CP value between the oldest (> 79 years) and the youngest (<12 years) population being approximately 16 times the difference from the 4 PCR cycle,' the researchers wrote
Children are at greater risk of catching a new form of coronovirus than previous stressors, government advisors revealed today
Between January 1, 2020 and December 1, 2020, over one million people were tested in North Holland.
Of these, 211,933 were done by qualified healthcare professionals, with viral load data available at 18,290.
All these swabs were processed by the same regional laboratory in the Netherlands to ensure that the tests were processed and analyzed in the same way.
“To our knowledge, this is the first study to evaluate SARS-CoV-2 viral load distribution in a large number of patients from different patient categories,” the researchers wrote in their study. As a pre-print.
‘Our data present a clear association between age and SARS-CoV-2 viral load, with children (under 12 years) showing lower viral loads that are independent of sex and symptom duration.’
More than 2,500 people tested were under 20 and of these were less than 12 years of age, equivalent to primary school age.
A metric used to determine the amount of viral load is CP, which indicates how many cycles of PCR – which replicate and amplify genetic material – are needed before the virus can be detected.
The higher the figure, the lower the viral load, as it indicates how many cycles of amplification were required.
In the study, researchers noted that the difference between the average CP figure for over-80s and under-12s is greater than four cycles, which is equivalent to a 16-fold increase.
Coronavirus infection can cause paralysis in some rare cases in children, a new study suggests (stock)
Children may be more likely to catch the mutant Kent version than the original strain
Government advisors claimed in December that the Kent Coronavirus variant could be at greater risk of any kind of stress.
Professor Neil Ferguson, an epidemiologist at Imperial College London and a member of No10’s advisory group NERVTAG, said one of the ‘signs’ children – who have so far been affected by the epidemic – were susceptible to mutation.
Education was instrumental in the UK’s March sanctions, but stepped down from his advisory position on SAGE after receiving guidance to meet his estranged boyfriend.
He said that it is possible that it is called B.1. During the November lockdown – which occurred during school time – could have occurred because the variant is better at infecting children.
Researchers believe that stress is 50 to 70 percent more contagious, but do not believe that it is more fatal or causes any more serious illness in adults or children.
Study authors from Cannerland in the north of the Netherlands said, “The most notable finding in this study was the association between SARS-CoV-2 viral load and age with significantly lower viral load in children.”
‘As previous studies have suggested that young children play a limited role in SARS-CoV-2 transmission, our data support this suggestion.’
During the epidemic, there remains mystery as to why children are relatively unaffected by Kovid-19, when adults are so severely affected.
In children, coronovirus epidemics are formed in far fewer cases than other respiratory diseases including flu.
The key principle for this is how the coronavirus enters human cells, through a receptor called ACE2 that is found on many cells in the upper respiratory tract.
As a result, Professor Wendy Barclay of Imperial College London, a member of NARVTAG, explained last month that it makes adults ‘easier targets’ than children.
This is because the amount of ACE2 increases naturally and steadily over a person, with very few and young children.
ACE2 is the receptor on the surface of human cells that coronavirus abducts and uses to infect.
Dutch researchers point out that antigen tests, which are faster, but not reliable, such as PCR tests, are less accurate when used by an infected patient with a lower viral load.
Among infected children under the age of 12, the registered viral load was less than 30 in almost a third (31.1 percent) of cases, double the proportion of people with this low reading in all other age groups.
As a result, researchers state that ‘SARS-CoV-2 antigen test may have lower sensitivity in children than in adults’.