When you purchase through connection on our site , we may realise an affiliate military commission . Here ’s how it work .

Each year , Escherichia coli , orE. coli , causes about265,000 infections and 100 deathsin the United States . Many of those contagion result in foodborne illness . Notably , E. colicontamination has historically caused great and notable food recollection . In 2023 alone , the U.S. Food and Drug Administration ( FDA ) recalled72,858 pounds(33,048 kilograms ) ofE. coli - contaminate food .

But how doesE. coliget into intellectual nourishment in the first berth ?

Life’s Little Mysteries

Certain foods, such as leafy greens, are at higher risk forE. colicontamination than others.

First off , it ’s important to understand that not all stress ofE. coliare the same .

" E. coliare a group of commonbacteriathat are found course in many places including the environment , food , weewee and in the intestines of people and sure animals , " Janell Goodwin , a spokesperson for the FDA , differentiate Live Science in an email . " MostE. coliare harmless and contribute to enteric health . "

However , certainE. colistrains are dangerous because theyproduce Shiga toxins , harmful pith that can damage the digestive pamphlet . These strains are call off Shiga - toxin - producingE. coli(STEC ) . People can become nauseated if they eat or drink nutrient or water foul by STEC , and youngster under 5 and grownup over 65 typically confront the great peril of severe infection .

a gloved hand holds a petri dish full of bacteria up against a head of lettuce

Certain foods, such as leafy greens, are at higher risk forE. colicontamination than others.

How dangerous bacteria contaminate food

There are a number of way STEC can end up in food . " nutrient goes through several steps from where it is grown or made to the dining tabular array , " a spokesperson for the U.S. Centers for Disease Control and Prevention ( CDC ) narrate Live Science in an electronic mail . " Contamination can pass at any item along the chain — during output , processing , distribution or prep . "

Goodwin noted that one major itinerary of transmission come about through animate being , including both livestock and wildlife . Animals may transmit STEC in their intestine and then shed it through their feces . Even a midget amount of feces present on a livestock carcass can chair toE. colicontamination in the resulting products made from that flesh . Ground squawk is at in particular high-pitched risk of contamination , for instance , becausecattle are the main carrier ofE. coliO157 , an especially dangerous strain of STEC . The bacterium can spread around when the meat is basis , and thishas resulted in major recalls .

bacterium from livestock or wildlife feces can alsocontaminate garden truck . For example , runoff from livestock farms can shepherdE. coliinto water used to water crops . Improperly handle manure used as fertiliser can also extend the harmful bacteria .

An Indian woman carries her belongings through the street in chest-high floodwater

In addition , farmworkers who come into contact with livestock or bring forth may inadvertently transferE. coliduring planting , harvesting or processing if they do n’t carefully followsafety protocolsaimed at preventing the transfer of training of bacterium from fecal contamination .

HarmfulE. colistrains can also taint food on the other end of the food for thought processing chain , such as at a eatery . " Carriers [ who cast the bacteria in their feces ] can circulate infections when food handlers do not use properhand wash hygieneafter using the restroom , " Goodwin said .

Related : bacterium from meat may make a half - million UTIs a yr

three prepackaged sandwiches

Stopping the spread

The FDA advocate that people wash their hands with warm water and soap for at least 20 instant before and after handling any raw food . The agency also emphasize the grandness of handwashing before , during and after changing a baby ’s diaper , and when make contact with farm animal .

Countertops and cutting boards can be another rootage of contamination , so the FDA advises washing those cautiously as well .

Certain foods are more potential to be contaminated with harmfulE. colithan others . A2021 report from the CDCfound that beef — particularly new or undercooked ground boeuf — and veggie rowing craw , such as leafy greens , were the source of 80 % of O157 infection in the U.S. from 1998 to 2021 . Raw and undercooked poultry ; raw sprouts such as alfalfa ; and products made with unpasteurised , or raw , Milk River are also common perpetrator , Goodwin added .

Product images of ReadyCare and Imperial nutritional drinks

— What is Salmonella ?

— E. coli in the gut may fuel a ' mountain range reaction ' run to Parkinson ’s , early subject field suggest

— Antibiotic resistance take a leak once - lifesaving drugs useless . Could we overrule it ?

a black and white photograph of Alexander Fleming in his laboratory

Researchers are still working to benefit a better understanding of the factor that contribute toE. colicontamination in the intellectual nourishment supply . Onerecent studyfound that seasonal changes in temperature may determine the likelihood ofE. colioutbreaks tie to lettuce grown in California , while anotherstudy from Arizonafound that STEC can spread through the air , journey from expectant stock facilities to nearby grow farm .

Goodwin also noted that , while it can be alarming to see more regularE. colirecalls and advisory in the news show , it does n’t necessarily mean that the food safety system is fail .

" The occurrence of recall and advisories means that manufacturers , importer , and allocator are monitoring for yield and take action when they notice a problem , " she say . " Consumers should sleep together that recall and outbreak advisory indicate that the problem has been name and is being speak .   "

An illustration of Clostridium bacteria

This clause is for informational purposes only and is not mean to tender medical advice .

An illustration of particles of the measles virus in red and white against a dark background.

an infant receives a vaccine

A photo of vials of shingles vaccine

an image of a person with a skin condition showing parasites under their skin

A close-up of a doctor loading a syringe with a dose of a vaccine

Circular alignment of stones in the center of an image full of stones

Three-dimensional rendering of an HIV virus

a photo of the Milky Way reflecting off of an alpine lake at night

an illustration of Mars

Tunnel view of Yosemite National Park.

A satellite photo of an island with a giant river of orange lava