An unusual spike in influenza, including cases that required hospital care, is being monitored closely by the Health Department.Eight people have visited King Edward VII Memorial with flu-like symptoms since May 21 — seven of them children.A spokeswoman for the Bermuda Hospitals Board said the increase seen at the Emergency Room most likely meant a larger number of cases being reported to private doctors.She added: “There have been approximately 26 patients with flu-like symptoms (viral illness, influenza, flu) seen by the emergency department between June 6 and 13.”And a Health spokeswoman said the increase in flu and respiratory illness was “above the level ordinarily seen” for this time of year.Such illnesses can remain a threat long after their usual peak season in January and February.The currently available flu shot is considered effective against the present strain of flu. Supplies of the vaccine are available until the end of this month, and are advised for young children, senior citizens, pregnant women or people with chronic illness.Flu symptoms include a high fever, couching and muscle aches. Those with signs of illness, or who have been in contact with people with symptoms, are encouraged to seek doctors’ advice, since early medical attention is important when symptoms are severe.Covering up sneezes, washing hands and avoiding public areas are also recommended when experiencing respiratory symptoms.Cases are being monitored by the Epidemiology and Surveillance Unit of the Health Department.Useful websites: www.health.gov.bm, www.cdc.gov.