DORSET health chiefs are urging vigilance from the public as the swine flu virus threatens to sweep into the UK.

The first confirmed cases of the potentially deadly illness reached Europe yesterday, with suspected infections being monitored in Scotland and Manchester.

Globally, the H1N1 flu virus is suspected to have been responsible for more than 100 deaths.

An action plan is due to be published addressing the impact of an outbreak in Dorset, dealing with protection of residents and minimising disruption.

Dr Mark Salter, of the Health Protection Agency, said there was a good chance the disease would reach the county.

He said: “Our message to Dorset residents is to remain vigilant not complacent.

“It is probably naïve to think we won’t get it in the UK because of the level of people movements around the world.

“The virus’s incubation period is only a couple of days long, so in theory its exponential growth can be quite great.

“If you develop symptoms, contact NHS Direct or your GP as soon as possible.”

Symptoms include fever, a cough, sore throat, body aches and fatigue.

People returning from affected areas who become unwell are being advised to stay at home and avoid contact with others.

Although there is no immediate risk to Dorset residents, the NHS is advising people to adopt good hygiene practice.

This includes disposing of dirty tissues swiftly and frequently washing hands to reduce the spread of any virus.

Dr Salter said there was a large stockpile of flu drugs available in the event of any outbreak.

Treatments such as Tamiflu and Relenza were highly effective in fighting the virus, he added.

The Bournemouth, Dorset and Poole Local Resilience Forum – comprising the county’s emergency services, hospitals and local authorities – is producing the pandemic flu plan.