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1) It's Richard Ebright who has been quoted in numerous articles. He isn't some "rando on twitter." You didn't read his sub-tweets.

2) You only read the title of the article I linked that was in sub-tweets. See the following tweet:

> The construction of novel chimeric SARS-related coronaviruses able to infect human cells and lab animals at WIV (1) was published with acknowledgment to NIH grant AI110964 (https://journals.plos.org/plospathogens/article?id=10.1371/j...) and (2) was reported to NIH under NIH grant AI110964 (https://reporter.nih.gov/search/0dVX_GElSEGDOsNMZq7qaQ/proje...)

So, yes, gain of function research was happening at WIV.