Protecting yourself from Listeria outbreaks is so important as these become more common. Here’s what you can do today to protect yourself and your loved ones.
Did you know that pregnant women are 10 times more likely to get Listeria than the general population? Pregnant Hispanic women are even more likely than non-Hispanic pregnant women to get a Listeria infection. This is probably caused by eating traditional soft cheese, such as “queso fresco,” and other traditional foods made with milk that is unpasteurized. Brands of these traditional foods made with pasteurized milk are available in stores and online.
What is the Risk?
Certain foods – including ready-to-eat refrigerated foods, unpasteurized (raw) milk, and foods made with unpasteurized milk – often may be contaminated with Listeria monocytogenes (LM), the third leading cause of death from food poisoning. These foodborne bacteria can grow at refrigerator temperatures and can cause an illness that in most healthy people is unpleasant but not serious. But in people who are at high risk, LM can cause an illness called listeriosis which can be severe and even lead to death. The people at high risk include pregnant women and their unborn babies, newborns, older adults, and other persons with weakened immune systems, such as those with HIV/AIDS, cancer, diabetes or kidney disease, and transplant patients.
While a pregnant woman may have only a mild, flu-like illness, or may not feel sick at all, listeriosis can lead to miscarriage, death of the unborn baby, a low-birth weight infant, health problems for the newborn, or even infant death. That’s why reducing risks from Listeria is so important.
There are three very simple things you can do to help prevent illness from Listeria:
The right temperatures slow the growth of Listeria. Put a refrigerator thermometer in the refrigerator and adjust the refrigerator temperature control, if necessary. Put a second thermometer in the freezer.
Your refrigerator should register at 40°F (4°C) or below and your freezer at 0°F (-18°C).
Use ready-to-eat, refrigerated foods by the Use By date on the package. The longer they’re stored in the refrigerator, the more chance Listeria has to grow.
Clean your refrigerator regularly.
Wipe up spills immediately. This is particularly important, so Listeria doesn’t have a place to grow and then spread to other foods.
Clean the inside walls and shelves with hot water and a mild liquid dishwashing detergent, rinse, then dry with a clean cloth or paper towel.
Use an appliance thermometer for your refrigerator and, if possible, one in your freezer:
Clean: Wash your hands before, during and after handling food. Wash utensils, cutting boards, and any surfaces that food touches after each use. Wash fruits and veggies—but not meat, poultry, or eggs.
Separate: Use separate cutting boards, plates, and utensils for raw (uncooked) produce and for raw (uncooked) meat, poultry, seafood, and eggs. Keep meat, poultry, seafood, and eggs separate from all other foods while shopping and in the refrigerator.
Cook: Only a food thermometer can make sure meat, poultry, fish, and casseroles are cooked to a safe internal temperature. For example, internal temperatures should be 145°F for whole meats (allow the meat to rest after cooking for 3 minutes) and fish, 160°F for ground meats, and 165°F for all poultry. Eggs should be cooked until the yolk is firm.
Chill: Use appliance thermometers to be sure your refrigerator is at or below 40ºF and your freezer is 0ºF or below. Between 40ºF and 140ºF is the Danger Zone, when bacteria can multiply rapidly. Generally, the more bacteria, the more likely someone will get sick. Most refrigerators have just a colder/ warmer adjustment, so the only way to know is to put a thermometer inside.
Consuming dangerous foodborne bacteria will usually cause illness within 1 to 3 days of eating the contaminated food. However, sickness can also occur within 20 minutes or up to 6 weeks later. Although most people will recover from a foodborne illness within a short period of time, some can develop chronic, severe, or even life-threatening health problems. Foodborne illness can sometimes be confused with other illnesses that have similar symptoms. The symptoms of foodborne illness can include:
If you think that you or a family member has a foodborne illness, contact your healthcare provider immediately. Be sure that a report with your local health department has been filed as well.
Follow Make Food Safe for more tips about food safety and education on prevention of foodborne illness.
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