Manx Care has reintroduced social distancing and mask-wearing.
It comes as the number of Covid cases rise on the Isle of Man.
The number of active cases (at the time of writing) is 944.
The rules have been tightened at Noble’s Hospital, Manannan Court and Ramsey District and Cottage Hospital.
A spokesman said: "Facemasks MUST be worn throughout these locations from entry into the building until exiting the building.
"Social distancing must be observed in all clinical and non-clinical areas".
Roadworks near Foxdale this week
Postal vote deadline looms for those living abroad
MP reveals more details of Whitehaven ferry proposals
Council wishes Bee Gee happy 80th birthday
Warning over traffic delays as city centre work gets underway
Cruise ship makes fifth visit of year
Bee Gee's birthday marked by family and fans
Joanne smashes international cricket records