The Health Protection Agency advising people to be aware of the symptoms of Legionnaire's disease -- which can lead to pneumonia and is sometimes fatal -- if they are traveling to the island, the BBC reported Friday.
"We are concerned that U.K. residents traveling to Corfu should be aware of this potential risk, however we are not suggesting that people change their holiday plans," Nick Phin of the Legionnaire's disease department at the HPA said.
The HPA cannot rule out a U.K. source of the infections and is still investigating, he said.
Symptoms may not appear until two weeks after infection and generally start as a "flu-like" illness, the HPA said, but the disease can be treated with antibiotics.
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