Fatal Listeria outbreaks this year focus Australian Food Safety Week
ONE in three Australians are either at risk of getting the potentially fatal Listeria infection themselves or live in a household with someone at risk, says research marking this year’s Australian Food Safety Week.
The Food Safety Information Council (FSIC) released national Omnipoll research.
Rachelle Williams, FSIC chair, said that this research shows a third of these people who are at risk, or living with someone at risk, had never heard or Listeria infection and two in ten of these couldn’t name any of the foods they needed to avoid or cook to prevent Listeria infection.
‘This is a timely reminder that food poisoning isn’t just a minor stomach upset but it should be taken seriously as it can be deadly,” Ms Williams said.
“The Listeria outbreak linked to Australian rock melons earlier this year resulted in seven tragic deaths and a miscarriage.
“This was followed by a recall of imported frozen vegetables which was linked to 47 listeriosis cases and nine deaths in Europe and one death in Australia,’ Ms Williams said.
‘While disease caused by Listeria infection is a comparatively rare form of illness, it can be a very serious for:
- pregnant women and their unborn babies
- people who have diabetes, cancer or suppressed immune systems due to other chronic diseases such as leukaemia, HIV, diabetes, liver or kidney disease, cirrhosis or ulcerative colitis
- older people (generally considered to be over 65 to 70 years) depending on their state of health and especially if they have an underlying health issue like those above
- people taking a medicine that suppresses their immune system e.g. prednisone or cortisone
- organ transplant patients.
‘If you’re not sure whether your condition or medication puts you in one of these at risk groups check with your GP on your next visit and follow this advice if you are. You can test your knowledge about Listeria by taking our quiz.
‘Listeria are bacteria that are widely found in the environment so most raw foods are likely to be contaminated. You don’t have to miss out on your favourite foods as Listeria is easily killed by cooking so, for example, you can easily add ham to a pizza, feta to a quiche or smoked salmon to fully cooked scrambled eggs. Just remember that cooked foods can easily become re-contaminated through poor food handling after cooking. For foods that can’t be cooked you can make other choices such as using fresh whole lettuce for salads rather than bagged lettuce.
‘If you are at risk of Listeria infection you need to avoid, or where possible cook, the following foods:
- Unpackaged ready to eat meats from delicatessen counters and sandwich bars; packaged, sliced ready-to-eat meats; cold cooked chicken purchased ready to eat, whole, diced or sliced and refrigerated paté or meat spreads
- All soft, semi soft and surface ripened cheeses e.g. brie, camembert, ricotta, feta and blue (pre-packaged and delicatessen), unpasteurised dairy products (e.g. raw milk or cheeses) and soft serve ice cream
- Pre-prepared or pre-packaged cut fruit and vegetable salads e.g. salads sold in bags or containers or from salad bars, shops or buffets, etc; pre-cut fruit and vegetables that will be eaten raw; frozen fruit or vegetables that may not be further cooked (e.g. berries, peas, sweet corn); rockmelon/cantaloupes (whole or cut); and bean or seed sprouts
- Raw seafood (e.g. oysters, sashimi or sushi); smoked ready-to-eat seafood; ready-to-eat peeled prawns (cooked) e.g. in prawn cocktails, sandwich fillings; and prawn or seafood salads; and seafood extender.
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‘It’s important you maintain a healthy and varied diet if you are pregnant, elderly or immune compromised so we recommend you also talk to your GP or an accredited practicing dietitian about how to eat well while avoiding foods at risk of Listeria.
‘Also follow these food safety tips to reduce your risk of Listeria infection as well as other forms of food poisoning:
- Always wash your hands with soap and running water and dry thoroughly before handling food and keep food utensils and cooking areas clean
- Unlike most other food poisoning bacteria, Listeria can grow at refrigeration temperatures, so ready to eat food or leftovers should never be stored in the fridge for more than 24 hours. Since Listeria grows slowly in the fridge, it will do so only very slowly at cold temperatures so make sure your refrigerator is keeping your food at or less than 5°C.
- Avoid refrigerated foods that are past their ‘use by’ date
- Refrigerate leftovers promptly and use within 24 hours or freeze
- Always look for cooking and storage instructions on the food package label and follow them when provided.
- Cook high risk foods such as poultry, minced meat, sausages, hamburgers and leftovers to 75°C
- Cook egg dishes, such as quiche, to 72°C in the centre (or until the white is firm and the yolk thickens)
- Cook frozen fruit and vegetables.
For more information about Listeria see the Listeria-take it seriously brochure
The Food Safety Information Council Ltd is Australia’s leading disseminator of consumer-targeted food safety information which aims to address the estimated 4.1 million cases of food poisoning in Australia each year that result in 31,920 hospitalisations, 86 deaths and 1 million visits to doctors on average each year.
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