Dr. Roland Wiesendanger is a PhD physicist and lacks medical qualifications. His personal research is not medical related (https://pubmed.ncbi.nlm.nih.gov/?term=roland+wiesendanger). Expert opinions on topics tend to be from those who have extensive experience in a given discipline. His claims make being an expert even more important (especially firm scientific evidence is further required). The WHO and its health team, made up of physicians, physician-scientists, and scientists all specializing in medical topics and often virology have deemed that it is extremely unlikely that the virus came from a lab. I personally am a physician scientist investigating COVID-19 genetics, for my Ph.D., both the virus's genetics and the human genetics associated with the virus. I trust the WHO's findings and agree with the responses to Dr. Wiesendanger's points by the author of this article. There are already increased hate crimes done against those of Asian ancestry due to it publicly arising first in Asia. Such a work by Dr. Wiesendanger utilizing baseless claims only provides fuel to such hate.