Manx Care says it's reopening the Covid-19 ward at Noble's Hospital amid rising numbers of cases.
All non-essential staff training has been cancelled, and the organisation is asking clinically-registered staff to work extra shifts if possible.
Staff absences have also risen because of coronavirus, with workers ill or self-isolating.
Chief executive Teresa Cope says the hospital is under pressure, and those who can should go to the Minor Injuries Unit at Ramsey District Cottage Hospital rather than Noble's.
Clocks go forward tonight!
Possible oil price hikes prompt Keys question
Government considers tourism tax to boost hospitality
US visitors need "increased caution" visiting Island, says State Department
Warning over Port Erin Beach work
Last bus strike of March continues today
Weather threatens four ferry crossings, cancels two
Part of Glencrutchery Road shut for water work