They patients are being cared for on Brock Ward in an effort to contain the spread as much as possible.
The majority are not displaying symptoms.
The cases have emerged quickly, as Tuesday’s Covid figures stated that fewer than five people with a recent Covid positive test were in hospital.
Face coverings will be provided at all hospital entrances if visitors do not have one. Staff will also wear face coverings.
Islanders are being asked to not attend the hospital or care homes if they have any cold or flu-like symptoms, irrespective of their LFT result.
These changes will remain in place for the time being, but will be reviewed every week.
Covid cases continue to steadily rise in the Bailiwick.
Tuesday’s figures showed there are 316 active cases. This compares with 257 last week and 141 the week before.
This week’s figures show 224 new cases being identified, while 117 people had recovered.
Of the new cases, 152 were symptomatic community cases, 11 were from community surveillance, 52 were contacts of a known case and nine were travel related.
Just over 300 active cases are in Guernsey and seven are in Alderney. Fewer than five are in Herm.
LFTs are available free of charge and can be collected from the Guernsey Information Centre or Beau Sejour.
Islanders who receive care in the community are asked to notify their providers if they are symptomatic, so that visits can be planned to protect other community patients and staff.
The States said, in a statement issued yesterday, that the rise in cases was not unexpected, as cooler autumn weather meant that people were more likely to spend more time indoors.
Islanders have been reminded to stay home if they are ill, regardless of their LFT result.
While it is not compulsory to isolate if someone tests positive, adults are being urged to avoid contact with other people for five days.
Young people and children aged 18 years and under should try to stay home and avoid contact with other people for three days if they test positive.