10:47 GMT27 February 2021
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    The skin infection in question is caused by the bacterium Mycobacterium ulcerans and is often initially dismissed as an insect bite, with the painless nodule occurring anywhere on the body and sometimes slowly developing into a destructive ulcer.

    A health alert has been issued in connection with a flesh-eating skin disease registered for the first time in Melbourne, Australia.

    “Several cases of Buruli ulcer have occurred in the Essendon, Moonee Ponds and Brunswick West areas of inner Melbourne,” said Victoria's Chief Health Officer Professor Brett Sutton on Tuesday, adding:

    “The risk of acquiring Buruli ulcer in these areas is considered low. However, this is the first non-coastal area in Victoria to be recognised as a potential area of risk.”

    ​All identified cases of the disease, which is caused by the bacterium Mycobacterium ulcerans (M. ulcerans) had been known to visit high-risk areas, such as Melbourne's Mornington Peninsula, Bellarine Peninsula, southeast bayside suburbs and East Gippsland.

    Professor Sutton was cited as elaborating that genetic analysis of the bacteria from each person “suggests a common source of infection in the area”.

    “The potential source of M. ulcerans in Melbourne's inner north has not been established, although the bacteria were isolated from the faeces of a local possum,” said the expert, adding that the disease is not transmissible from person to person. He also sought to allay concerns, suggesting there was no evidence of transmission of the disease from possums directly to humans.

    While often dismissed as a mere insect bite at the outset, the Buruli ulcer, or Bairnsdale ulcer, is a skin infection commonly found in west or central Africa and is usually associated with stagnant water.

    ​While occurring most often on exposed areas of the limbs, the nodule is originally painless, but may later ulcerate in one or two months, becoming painful and  causing a severe fever.

    Recent evidence has increasingly linked mosquito bites to the transmission of the disease.

    Victoria's Department of Health and Human Services stressed that cases of Buruli ulcer must be notified within five days of diagnosis, adding that while in the state the incidence of the disease is the highest in people aged 60 and older, people of any age can be infected.

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    Tags:
    Melbourne, mosquito bite, mosquito, mosquito, flesh-eating, Australia
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