Monkeypox has been added to the list of notifiable diseases in Jersey.
The Health Minister has signed an order following an outbreak of the virus in other countries.
Deputy Richard Renouf insists it's a precautionary measure.
There are 190 confirmed cases in the UK, but none in Jersey or the other Channel Islands.
Health experts insist the risk remains low.
The disease is spread by close contact. Initial symptoms include fever, headache, muscle ache, chills, and exhaustion.
Most people recover within a few weeks without any specific treatment.
Islanders are being told to look out for any unusual rashes or lesions - and to contact their GP or the sexual health service, initially by phone, with any concerns.
A new scientific committee has been set up to prepare and respond, should cases be confirmed on island.
"This is a new STAC which has been convened to discuss the technical response to this emerging issue. Work is being undertaken across the crown dependencies so we are ready should cases emerge. SCG has met to ensure good preparedness.
Public health officers and colleagues across Government have been working to put plans in place should an outbreak occur in Jersey.
I'd like to reassure Islanders that monkeypox is a rare infectious disease, and despite cases increasing in the UK, the risk of catching it in the UK or in Jersey remains low.
Monkeypox spreads by very close contact with someone with monkeypox or contact with clothing or linens used by a person who has monkeypox. Most people recover within a few weeks, however, severe illness can occur in some individuals." - Professor Peter Bradley, Director of Public Health.
The sexual health clinic will be contacted on 01534 442856 and firstname.lastname@example.org