Separately, an Islander has been admitted to hospital to be treated for Covid-19. There are now a total of 163 known active cases, a rise of ten from Monday.
In a statement, a government spokesperson said: 'We have been advised that there are three confirmed cases of Covid-19 in the General Hospital. These patients are not in hospital due to the virus and are being treated for other conditions.
'The contact-tracing team have begun informing direct contacts who have visited the ward in question and as a precaution no further visitors will be permitted on to the relevant ward.
'The hospital continues to function as normal. Infection control measures have been implemented as a matter of course – managing Covid is not a new scenario for the Hospital.
'To protect the identity of the patients and respect the privacy of relatives and visitors, we will not be commenting further.'
A range of new measures, including halving the maximum number of people allowed at public gatherings and requiring children in Year 11 and above to wear masks in communal areas, are being implemented in the coming days.