The squad is actually already gone now. Two of the uncapped fullbacks out of 42 is not worrying, notably because a number of players like Jaminet, Buros or Hastoy can still play at 15. The problem is that there is a risk that it spreads.
The more annoying thing is that the attack and defence coaches are sick, which mightily sucks ahead of a test match. Hopefully they’ll recover in 10 days, before the match, but bringing them and making them work overnight will still be far from ideal.