You could have looked it up yourself. Here are more sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7119956 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC

You could have looked it up yourself. Here are more sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7119956 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7119956 https://www.nih.gov/news-events/research-involving-potential-pandemic-pathogens https://www.nih.gov/news-events/research-involving-potential... Here you can see that there was already controversy around it back in 2014: https://osp.od.nih.gov/biotechnology/gain-of-function-research/ https://osp.od.nih.gov/biotechnology/gain-of-function-resear... The comment seems to have hit a nerve, since you choose to reply with an ugly ad hominem attack straight away.