On very rare occasions, the illness can become more serious and develop into meningitis or septicaemia. While you can treat listeria with antibiotics, it's best to avoid it.
People at risk of listeria infection should avoid high-risk foods. Because listeria bacteria live in so many places, there are a number of ways for contamination to occur. The bacteria may be present in raw foods or contaminate food after it has been cooked or processed. The NSW Food Authority is still working to determine the exact cause of the rockmelon outbreak, but Ms Buchtmann said it could have occurred at any stage of the farm-to-shelf process. Listeria is easily killed by heat, although cooked foods can easily become re-contaminated through poor food handling after cooking.
It slows its growth, but it can still grow," Ms Buchtmann said. Storing contaminated foods, even in the refrigerator, may allow the listeria bacteria to grow. For people who are pregnant, over 70, or have a weakened immune system, the best way to avoid listeria infection is to eat freshly cooked food, and well-washed, freshly prepared fruit and vegetables.
According to the Food Safety Information Council, people in high-risk groups should avoid foods which have a higher risk of listeria contamination, including:.
You can further reduce your risk by practicing good food safety, such as avoiding foods that are past their 'best before' or 'use by' date, refrigerating leftovers promptly, and cooking and reheating foods thoroughly. The Food Standards Australia and New Zealand website states: "If you plan to eat previously cooked and refrigerated leftovers, only keep them in the refrigerator for a day and reheat them thoroughly to steaming hot.
This will kill listeria bacteria. It's also important to wash your hands before preparing food, and to wash knives, cutting boards and kitchen appliances after they've touched raw food — to prevent contamination of cooked and ready-to-eat foods. If you are in a high-risk group, have eaten rockmelon earlier this year, and are not feeling well, it's a good idea to see your GP, Ms Buchtmann said. We acknowledge Aboriginal and Torres Strait Islander peoples as the First Australians and Traditional Custodians of the lands where we live, learn, and work.
So here are some things to keep in mind if you've eaten rockmelon this year. Listeria rare but can be fatal Listeria is an illness usually caused by eating foods contaminated by the bacteria, listeria monocytogenes.
These cantaloupes were harvested in August and September, distributed widely in the United States, and are currently available in grocery stores. Ill persons were interviewed about exposures during the month before becoming ill; investigators compared their responses to persons with listeriosis reported through the CDC Listeria Initiative , whose illnesses were not part of this outbreak. Preliminary results strongly suggest that illnesses are linked to consumption of cantaloupes.
Several ill persons who remembered the type of cantaloupe said they were Rocky Ford cantaloupes. Product traceback information indicated these cantaloupes were marketed as cantaloupes harvested in the Rocky Ford region. Product traceback information from Colorado State officials indicated these cantaloupes were harvested in the Rocky Ford region.
FDA is working closely with CDC, the firms involved, and public health authorities in states where illnesses occurred to determine the exact source of contamination.
On September 9, the Colorado Department of Public Health and Environment Cdc-pdf External advised persons in Colorado at high risk for severe listeriosis to avoid eating cantaloupes. CDC now advises persons throughout the mainland United States and at high risk for listeriosis, including older adults, persons with weakened immune systems, and pregnant women, to not eat cantaloupes marketed as coming from the Rocky Ford region of Colorado.
Sign up for RSS Feed. Listeria Listeriosis. Section Navigation. Facebook Twitter LinkedIn Syndicate. This multistate outbreak of Listeria monocytogenes infections listeriosis ended in October ; however, on December 8, a fifth outbreak-associated subtype of Listeria was isolated from a sample of cantaloupe collected during the investigation. The fifth subtype matches that of Listeria isolated from one patient. Therefore, this case has been added to the number of outbreak-associated illnesses, bringing the total number of outbreak-associated illnesses to persons infected with any of the five outbreak-associated subtypes of Listeria.
These persons lived in 28 states. The number of outbreak-associated deaths has increased by three since December 8, In total, 33 deaths from outbreak-associated cases of listeriosis have been reported to CDC. Ten other deaths not attributed to listeriosis occurred among persons who had been infected with an outbreak-associated subtype. Outbreak Summary. Introduction CDC collaborated with public health officials in numerous states, including Colorado, as well as the U.
Final Case Count Update This multistate outbreak of Listeria monocytogenes infections listeriosis ended in October, After the final update on December 8, a fifth outbreak-associated subtype of Listeria was isolated from a sample of cantaloupe collected during the investigation. Therefore, this case has been added to the number of outbreak-associated illnesses.
This brings the total number of outbreak-associated illnesses to persons infected with any of the five outbreak-associated subtypes of Listeria. Case Count Update A total of persons infected with any of the four outbreak-associated strains of Listeria monocytogenes were reported to CDC from 28 states. Thirty deaths were reported. November 2, Case Count Update As of 9am EDT on November 1, , a total of persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 28 states.
Nevada and Utah have reported their first case each since the last CDC update. Twenty-nine deaths have been reported. October 25, Case Count Update As of 9am EDT on October 24, , a total of persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 26 states.
Twenty-eight deaths have been reported. October 18, Case Count Update As of 9am EDT on October 17, , a total of persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 26 states. Pennsylvania has reported their first case since the last CDC update. Twenty-five deaths have been reported. October 12, Case Count Update As of 9am EDT on October 11, , a total of persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 25 states.
Listeriosis presents with flu-like symptoms of fever, chills, muscle aches, nausea and sometimes diarrhoea. In those at greater risk, there is a risk of sepsis, meningitis, pneumonia and endocarditis.
Victorians are urged to dispose of any rockmelon if purchased between the start of January and 1 March, because it is difficult for consumers to determine the origin of purchased rockmelon. People who have consumed rockmelon purchased during this time should look out for the symptoms of listeriosis, which usually take two to three weeks to develop, and potentially up to 70 days in pregnancy.
Consider listeriosis in patients with compatible symptoms and exposure, take blood or CSF for testing according to the syndrome, and notify the Department on Contact the Chief Health Officer. Contact details Do not email patient notifications. Phone Fax Notification procedures. Contact details Food Safety Unit Phone Share this page Twitter , opens a new window Facebook , opens a new window LinkedIn , opens a new window.
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