The city's first case of local dengue fever this year was confirmed yesterday, with medical experts saying there could be more. A 58-year-old man from Tai Wai showed symptoms of fever, tiredness, diarrhoea and rash on May 25. He visited a private doctor, general outpatient clinic and a traditional Chinese medical practitioner before being admitted to Union Hospital on May 31. The patient was diagnosed with dengue fever yesterday when the result of a blood test became known. However, he had made a good recovery and was discharged from the hospital in Tai Wai yesterday. His wife has so far not shown any symptoms of dengue fever. The patient, who works as a renovation worker in Cheung Hing Mansion on Cheung Wong Road in Prince Edward, is believed to have contracted the mosquito-borne disease locally. He reported being bitten by mosquitoes often near his home in Tai Wai, where the dengue fever ovitrap index was around 8.9 last month. While the May indexes for all tested locations have not yet been released, the figure retrieved in Tai Wai is considered to be relatively high. "The patient did not have travel history during the incubation period," said Dr Chuang Shuk-kwan, consultant at the Centre for Health Protection. The incubation period of dengue fever ranges from three to 14 days. She said there could be more dengue fever cases. "We cannot exclude more local cases, as mosquitoes tend to bite many people at the same time and might have bitten a number of people," Chuang said. There have been 34 cases of imported dengue recorded so far this year. Last year there were 112 confirmed cases of the disease, including three that were contracted locally. Meanwhile, the Centre for Health Protection last night conducted a talk on dengue fever in Grandway Garden, Tai Wai, where the man who contracted the disease lives. Residents with symptoms will be able to arrange a blood test. People with symptoms who have been near Grandway Garden or Cheung Hing Mansion should call a special hotline on 2125 1122.