Can somebody comment/explain this?
and especially this:
I would say he thinks aloud whether the scientific community can, or is willing (because of the panic) to discuss critically how is the contribution of the cases caused by the known "old" corona viruses during the season (as there is a large number of various "corona viruses" existing, they usually mixing with influenza viruses during the season) versus the current contribution of "sars-cov-2 corona virus". You have to be good in german to understand the "nuances" of his loud thinking, while I can I would say he indicates that he thinks the scientists have got a pretty hard time today to discuss that "critically".
there is a limited (not at all large) amount of coronaviruses able to infect humans:
- Human Coronavirus 229E (HCoV-229E)
- Human Coronavirus OC43 (HCoV-OC43)
- Human Coronavirus NL63 (HCoV-NL63)
- Human Coronavirus HKU1 (HCoV-HFU1[3])
- Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV)
- MERS-CoV (AKA Human Coronavirus Erasmus Medical Center/2012 HCoV-EMC/2012)
- Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2)
the first four have been with us since centuries and just cause flu like symptoms
SARS and MERS are deadly, while SARS-CoV-2 might became as mild as the first four once we get vaccines (and herd immunity)
besides that, yes, COVID-19 tests are new, may be not the same in each country and like most medical tests give a (still unclear) percentage of false positive/negative results
so what does that guy say we do not know yet?