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Protect yourself from Legionnaires’ disease when working with compost and potting mix

Spring is a popular time to get back into the garden – but people need to be careful around their handling of compost and potting mix.

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.

When working with compost and potting mix it’s important to take measures to avoid inhaling dust.  For example:

  • When 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.
  • 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.

 

More information here on our Waikato DHB website.

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