The amount of virus released after infection is high even before the onset of symptoms… Asymptomatic infections
US CNN “Results that provide valuable insight … Concerns about intentional experimentation seem to be fading”
The United States CNN broadcast yesterday (31st) local time, the British Imperial College London (ICL) Dr. Christopher Chu’s team, amid many controversies and concerns, the Corona 19 intentional infection test, which provided valuable insight into Corona 19, came out. reported. He said that the study is expected to alleviate concerns about intentional infection testing.
The research team published the results of a study on intentional infection with COVID-19 conducted by recruiting healthy volunteers aged 18 to 30 in March last year in the international medical journal ‘Nature Medicine’.
Although the study was conducted with a number of safety measures, it was controversial from the start because it was deliberately injected into humans to determine the effects of viruses or pathogens on the human body.
The volunteers consisted of healthy people with no risk factors for COVID-19, and the research team conducted the experiment after providing them with sufficient information about the study. In addition, the experiment was conducted in stages to minimize the risk, and the antiviral drug remdesivir was administered to the first 10 infected people to reduce the possibility of severe progression, and a monoclonal antibody treatment was prepared in case of possible worsening of symptoms.
Using a long, thin tube, a small drop of liquid containing the original Corona 19 virus was injected into the nostrils, and infection and symptoms were observed in a negative pressure room 24 hours a day for 2 weeks.
As a result, 18 people, about half of the participants, were infected with COVID-19. Two patients were asymptomatic, and all 16 patients with symptoms were mild, such as stuffy nose, sneezing, and sore throat.
In this study, it was found that even a single drop of liquid as small as 10 μm can be infected with COVID-19. Also, since the incubation period is short, it was found that the virus started to be released two days after infection and it was released for about six and a half days. However, some infected people released the virus for 12 days.
The virus was detected in the throat 40 hours after the virus was injected, and the virus detection started 58 hours later in the nostrils. In addition, it was confirmed that the amount of virus emitted after infection was high even before symptoms appeared, and it was confirmed that asymptomatic infected persons without symptoms also released a large amount of virus.
Dr. Chu said that in the future, he plans to conduct deliberate infection tests to see how vaccinated people react to being infected with the delta mutant virus.
On the other hand, Dr. Kathleen Edwards of Vanderbilt University, who was not involved in the study, said in an editorial published together in the journal, “This study not only provides important information about the infection and transmission of the COVID-19 virus, but also quells fears of intentional infection experiments, It paved the way for me to continue my research.” “We do not conduct research such as intentional infection on babies or on 75-year-olds with chronic lung disease,” he said.
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