Knowra Listeria monocytogenes Listeria monocytogenes Listeria monocytogenes is a Gram-positive, foodborne bacterium that can grow at refrigeration temperatures and cause listeriosis, including invasive disease in vulnerable people.
Listeriosis : An infection caused by Listeria bacteria, ranging from mild gastrointestinal illness to invasive disease. This bacterium causes the disease, whose severity depends on whether infection remains intestinal or becomes invasive.
Food microbiology : The study of microorganisms in food, including their effects on food safety, quality, and production. This field examines Listeria contamination, growth, and control throughout food production.
Listeria outbreak linked to cantaloupes in 2011 : A United States listeriosis outbreak in 2011 linked to contaminated cantaloupes from Jensen Farms. The outbreak demonstrated that fresh produce and its processing environment can transmit this bacterium.
Listeria innocua : A Listeria species generally considered nonpathogenic to humans and closely related to Listeria monocytogenes. Its close resemblance can complicate laboratory identification of the disease-causing species.
Invasive listeriosis : A severe form of listeriosis in which Listeria spreads beyond the intestine into blood, the nervous system, or other sites. This bacterium's invasive disease can cause sepsis, meningitis, and other life-threatening complications.
Internalin : A family of Listeria surface proteins that mediate entry into host cells. Internalin A and B help this bacterium invade intestinal and other host cells.
Ready-to-eat foods : Foods intended to be eaten without further cooking or preparation that would reduce microbial hazards. Contamination can persist in foods such as deli meats and soft cheeses because they may be eaten without cooking.
Listeria outbreak linked to Blue Bell ice cream : A 2015 listeriosis outbreak associated with contaminated Blue Bell ice cream products in the United States. It showed that frozen products can carry Listeria even though freezing does not permit its growth.
Listeria ivanovii : A Listeria species that primarily causes disease in ruminants and only rarely infects humans. It provides a contrast to Listeria monocytogenes, the principal human pathogen in the genus.
Pregnancy-associated listeriosis : Listeria infection during pregnancy, which can harm the pregnant person and cause fetal or newborn disease. Pregnancy can involve mild maternal symptoms while infection severely affects the fetus or newborn.
Show all 27