3 more and we are out

Addenbrooke's Hospital as I have mentioned earlier have been suffering from a Norovirus outbreak which causes AGE.
Within 3 days, 17 of our 50 wards have been infected by the virus.
We just need 3 more infected wards to close the hospital down.
At the moment, all patients and doctors/nurses are quarantined (those in the infected wards).
Meals provided to the medical staff (in infected ward) round the clock (they are not allowed to go to the canteen or to 'clean' wards).
If they finish their shifts, then are required to have a shower and go straight home.
'Lepak-ing' is prohibited.