RE:RE:Enlightenment required MBX could produce antigen for any virus, but they don't do it for COVID-19. Probably won't either, since they are focused on another line of the business - control kits for testing for COVID-19, HPV, others. They do produce antigens for other viruses where they specialize - rubella, I believe is one. It is on their website, so good place to go and check. Controls for test kits is where their focus is on, as well as mentioned above - VTM, and let's not forget, kinlytic.