Beware of summer "refrigerator killer" Listeria

Summer is the high incidence of listeria infection season, known as the "refrigerator killer" black name listeria urgently need to attract everyone's attention, because listeriosis is one of the diseases with the highest case fatality rate of all foodborne bacterial infections, and there will be a large number of listeria poisoning cases sent to the hospital every year at

Listeria monocytogenes, Listeria monocytogenes

What are the symptoms after "recruiting" Listeria?

All people are at risk of contracting Listeria, but pregnant women, infants, and the elderly are at the highest risk of infection; Listeria can even be transmitted vertically to the fetus through the placenta, leading to listeriosis in newborns

Ordinary adults: After eating contaminated food, they often do not immediately appear uncomfortable symptoms, but suffer a little bit of suffering after two or three days, such as fever, vomiting, stomach discomfort, diarrhea, etc.

Young children and the elderly: more likely to have serious complications, resulting in meningitis, bacteremia, endocarditis, etc.

Pregnant mothers: infection with listeriosis in the first trimester may lead to miscarriage; Infection with listeriosis in the third trimester may result in preterm birth, low birth weight or infant death; In most cases, the symptoms of a pregnant mother infected with listeriosis are similar to those of ordinary adults, non-specific, a bit like flu symptoms, fever, headache, diarrhea, myalgia or other gastrointestinal-related symptoms

How to eat in summer to stay away from Listeria infections?

Since many animals can carry this bacterium but do not experience any symptoms, it can be easily transmitted to humans

Try not to eat these foods

Cold-cut cooked foods such as chicken, duck, ham, sausages, etc.

Smoked seafood

Ready-to-eat seafood such as smoked and smoked seafood, raw seafood, sashimi, and sushi with raw seafood or sashimi

Raw milk that has not been pasteurized or boiled to sterilize, as well as foods containing such milk ingredients (it is recommended to carefully read the outer packaging of the food, which will indicate whether it has been sterilized), such as dairy products and ice creams from unknown sources on the street, without formal packaging and quality assurance

Soft cheeses and mould-ripened cheeses (e.

Raw eggs or egg yolks that have not been heated to a completely solidified boiled egg

Sauces, pastries, ice cream, etc.

Leftovers that have not been heated and left in the refrigerator for too long or at room temperature

Buffet restaurants, supermarkets and snack bars sell loose homemade salads and cut prepackaged fruit

Various types of sprouts, raw or not fully cooked, such as alfalfa sprouts, mung bean sprouts, radish sprouts, etc
.
When eating out, avoid sandwiches, salads, etc.
that contain these foods (unless you make sure the buds are heated through
).

Food that can be eaten with confidence

Strictly packaged, room temperature preserved, cooked meat products within the shelf life produced by regular manufacturers
.

Strictly packaged smoked seafood produced by regular manufacturers, sauces with egg or milk ingredients, or other foods produced by regular manufacturers
.

Pasteurized milk or food
containing pasteurized milk components.

Among the hard cheeses are Parmesan cheese, cheda cheese, mascarpon cheese, mozzarella cheese, remastered cheese, etc
.

Heated and cooked until the yolk is completely solidified
.

Leftovers
that have been warmed overnight.

Thoroughly cooked various sprout foods
.

Recommend a few ways to "clean + keep warm" measures for refrigerators

It is reassuring that Listeria monocytogenes is afraid of heat, and if the food is fully cooked or heated to more than 70 ° C, and continuously heated for more than 2 minutes, listeria
can be killed.
In addition, we can also stay away from the threat
of killer bacteria through the following measures in life.

The refrigerator temperature needs to be set between 0-4 ° C, preferably not greater than 4 ° C
.
Families with pregnant women, the elderly, and children, it is recommended to put a refrigerator thermometer in the refrigerator to check the temperature
regularly.

The 2-hour principle can be followed: whether it is leftover meals that have not been eaten, or refrigerated or frozen foods that are prepared to be stored in the refrigerator, do not leave it at room temperature for more than 2 hours, that is, less than 2 hours should be put into the refrigerator, so as not to give bacteria too many opportunities to breed and multiply and produce toxins; There is also an "upgraded version" of the 1-hour principle, that is, the food mentioned above, once the room temperature is higher than 32 ° C, it should be put into the refrigerator in less than 1 hour, otherwise it should be discarded, especially dairy products, livestock meat, seafood
.

To clean the refrigerator regularly, clean the refrigerator walls and shelves with hot water and neutral detergent, and wipe them clean
.

Check the food in the refrigerator once a week, discard the expired food in time, and it is best to mark the food that is about to expire with a clear marker to avoid forgetting
.

In short, there is a very useful principle, that is, whether raw meat or leftovers, it should be fully heated, cooking temperature above 70 ° C, and continuous heating for more than
2 minutes.
However, even so, summer leftovers should be stored reasonably and not left for too long
.
(Edited by Li Chuang)