It only took a few minutes for the Illithid to arrive at the cargo bay, equipped with sturdy environmental suits over the top of their usual protective mechanical bodies. They didn't pick the ones that Terminus had on board, instead preferring the ones that they had brought with them on their own vessel.
They seemed to be sturdy enough, and their race was so much more advanced than humanity that Max had little doubt that they were fully protected from any potential threat of the virus.
"Thank you for the opportunity to let us examine you. Our species takes the threat of mind-controlling viruses, and bioweapons very seriously. As you are likely aware, we have rather powerful mind-affecting abilities ourselves, so in our distant past, that was a great threat to the very existence of our species, with many others insisting that we could never be safe as a group and that we should be either excluded or eliminated.