The US Food and Drug Administration (FDA) issued a warning for broccoli sold at Walmart and recently has elevated the risk for the same, This has been the highest recall of FDA, said the reports. The FDA said, "This advisory is being initiated due to possibility of contamination with Listeria monocytogenes. The potential for contamination was discovered during random sampling by Texas Health & Human Services from a Texas store location where one of multiple samples yielded a positive test result."What is Listeria Monocytogenes?This is a bacterial pathogen which is responsible for listeriosis. This is a serious foodborne illness. It thrives in various environment, including soil, water, and food processing facilities and is gram-positive and rod-shaped in its nature. It can also grow at refrigeration temperature which can then infect dairy products, deli meats, seafood, and unpasteurized milk. There was one sick individual in each of New York and New Jersey, two in Illinois, and seven in California, including the dead child. According to the CDC, they all identify as Asians.What Does Listeria Outbreak mean?As per the CDC, Listeria are bacteria or germs that can contaminate many food and those who eat can get infected with the bacteria. CDC mentions that it is rare, however, could be serious, though there exists steps to prevent this infection.It is a foodborne illness caused by the bacteria L. monocytogenes. Symptoms include fever, chills, and headache. It can cause invasive illness and intestinal illness. It is also the third leading cause of deaths from foodborne illness in the US, with 1,600 people infected each year, out of which 260 die.Symptoms often appear within two weeks of consuming Listeria-contaminated food, but can appear as early as the same day or as late as ten weeks later.A fever, muscle aches, and fatigue are common symptoms of pregnancy.People who are not pregnant usually have fever, muscle aches, and tiredness. They may also get a headache, stiff neck, confusion, loss of balance, or seizures.Is It Deadly?It is deadly because the pathogen forms a layer of biofilm on the food which makes it resistant to cleaning or disinfectants. It also persists in food production environments, and increases the risk of contamination. What can be done to be safe? The best way to stay safe is by avoiding raw sprouts, soft cheeses made from unpasteurized milk, refrigerated deli meats or broccoli forets, unless heated to really hot temperatures.Are There People more at risk?Pregnant women, persons over the age of 65, and people with compromised immune systems are most vulnerable to Listeria. This is due to the fact that Listeria is more prone to move from the gut to other areas of the body, culminating in invasive listeriosis, a serious illness.Listeria can cause pregnancy loss, early birth, or a life-threatening infection in newborns.Listeria frequently causes hospitalization and, in some cases, death in those aged 65 and older or with a weakened immune system.