Protect yourself from Legionnaires’ disease when working with compost and potting mix
Labour Weekend is a popular time to get back in the garden and while gardening at this time of the year is enjoyed by
many, it’s also important to keep yourself safe from a potentially serious illness. Compost and potting mix often
contain the bacteria which cause legionellosis, also known as Legionnaires’ disease. Infection can occur when dust from
compost and potting mixes is inhaled.
Legionnaires’ disease can vary in severity from a flu-like illness to severe pneumonia. Symptoms include fever, chills,
muscle aches and pains, shortness of breath and coughing. Anyone who develops such symptoms within 2 – 10 days after
handling compost or potting mix should see their doctor without delay. Legionnaires’ disease can be a serious illness
that requires hospital treatment.
The disease is more common in older people, smokers, people with underlying lung disease and other long term conditions
such as diabetes. Young, fit and healthy people are rarely affected. The disease doesn’t spread from person to person.
“Gardeners and farmers can take simple steps to reduce the risk of getting Legionnaires’ disease,” says Dr Phil
Shoemack, Medical Officer of Health for Toi Te Ora – Public Health Service. “When working with compost and potting mix
it’s important to take measures to avoid inhaling dust. For example, open potting mix and compost bags gently and away
from your face, cut the bag open with scissors rather than ripping it, water gardens gently using low pressure, and,
where possible, avoid working in unventilated places such as closed sheds and greenhouses. When potting plants, gently
wet the soil or compost first to reduce dust, and wash your hands after handling soil or compost. Use of a face mask is
recommended especially when these other measures are not practical or possible,” advises Dr Shoemack.
For more information go to www.ttophs.govt.nz/legionellosis
ENDS