 that a vaccine can create. That's the gold standard of vaccines. And that same strategy is being used to make a COVID-19 vaccine as well. Oh, really? We still do that? We still do that, yeah. Sometimes they ask you if you're allergic to eggs when you get a vaccine. That's why. Oh. Before we leave this part of the process quick, how long did it take them to do this pass it through the chicken cell thing? It probably took about two years to do that. Two years? That's right. Which sounds slow, but it's fast.