"We don't fuck around with... Well, any nonhumans, but especially anything that has to do with the virus. A virus." She makes sure to keep her voice calm because this isn't an attack on Drake specifically or Jesus's decision to trust him. It's much less rational and much more deep seated than that:

"Even if one of us doesn't think it's important. We've all suffered too much because of it. We're not reasonable about it. It's easier to think straight if we're not surprised by it, even if there's genuinely no risk. Does that sound like something we can agree on?"