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Question: What is the difference between antibody, antigen and PCR testing?
Answer: There are two kinds of tests for COVID-19: Tests to detect an active SARS-CoV-2 (the virus that causes the disease) infection in a person and tests to detect antibodies the immune system makes against SARS-CoV-2.
Hello Professor Friedrich; I just read your article on the different tests for covid here:
I'd be interested in your understanding the validity of the Shanghai (and other cities in China) zero-covid policy and the type of testing they're doing there.
Rick Potvin, blogger (I get about 100 readers for good posts over a few months)
Question: What is the difference between antibody, antigen and PCR testing?
Answer: There are two kinds of tests for COVID-19: Tests to detect an active SARS-CoV-2 (the virus that causes the disease) infection in a person and tests to detect antibodies the immune system makes against SARS-CoV-2.
Hello Professor Friedrich; I just read your article on the different tests for covid here:
I'd be interested in your understanding the validity of the Shanghai (and other cities in China) zero-covid policy and the type of testing they're doing there.
Rick Potvin, blogger (I get about 100 readers for good posts over a few months)
Rick says- I visited Healthy Habits health food store today and a guy I normally talk to there greeted me... for whatever reason, I blurted out " have you seen the new lockdowns in Shanghai?"... he muttered something as he was passing by... along the lines of not keeping track of news like that... This was interesting to me because he was a MASK USER when masks were being enforced at his store and pushed by the CITY OF PHOENIX... and the GOVERNOR OF ARIZONA DUCEY... and of course, masks don't work, they never did.... not in the way intended by the ILLEGAL UNCONSTITUTIONAL CDC who are still working as a MEDICAL DICATORSHIP here in the USA. I DID see the pretty girl employee's face who was hiding behind a mask a year ago and whose interaction with me sparkled a few times-- and when I suggested she at least use a face SHIELD, saw her using a face SHIELD the next time I saw her. Remember that whole confusion with masks vs. face shields? Seems like such a long time ago.
Rick says- We're now two years into this Covid-war and once again China leads the way by locking down the biggest city in China, of some 30 million people. Tucker Carleson points to this as a prelude to more severe lockdowns here.