A distinguished Thai virologist says blood exams should be used to determine the share of the inhabitants that has been infected with Covid-19. According to a Nation Thailand report, Dr Yong Poovorawan says a blood take a look at may even detect Covid-19 in asymptomatic patients. The head of the Centre of Excellence in Clinical Virology made the assertion in a submit on his Facebook page yesterday.
Yong explains that Covid infections behave like a pyramid, with 90% of sufferers at the bottom – which means they’re asymptomatic or have solely mild symptoms. Special is particularly the case with the now-dominant Omicron variant. However, on the prime of the pyramid, are the Covid sufferers who’re severely sick with the virus. These include the elderly and other people with underlying well being conditions.
According to Yong, a current study examined the blood of 80 children between the ages of 5 and 11, who weren’t in a high-risk group and who showed no signs of Covid-19 an infection. The checks confirmed that 5 of the youngsters had been infected but were asymptomatic, having developed natural immunity to the Covid virus spike protein.
Yong says such immunity cannot be replicated by vaccines and that the kids are part of a section of the inhabitants that continues to be asymptomatic, meaning they have to take a blood test to point out they’ve been infected with the virus. This means blood exams are the one way to precisely decide how many individuals in the nation have been contaminated with Covid-19 and gone on to develop pure immunity.
However, he provides that such immunity doesn’t final lengthy, dropping to 25% a year after an infection. According to the virologist, blood exams can be utilized at the aspect of a person’s vaccination historical past to determine immunity ranges.
SOURCE: Nation Thailandg