 are coming from mammalian species. So we want to identify if they are present or not. So when we looked at it, we used for that, we used plant proteins called lectins. And they specifically bind to these sugar molecules. The sialic acids are sugar molecules, so they specifically bind to it. And then once they, we want to see if the virus is binding as well. So in fact, when we looked at all our data here, what we are presenting in this manuscript is