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- A child consumed watermelon in a restaurant and was thereafter infected with Esc. coli O157:H7. Investigations revealed that the knife used to slice the melon was also used to cut raw beef (and then washed). What could have been done to prevent the situation?This pathogen is usuall foodborne and causes a mostly asymptomic disease. The most common foods associated with it are deli meats and unpasteurized dairy products. It rarely cause meningitis and spsis. It is mainly of concern because it can lead to still birth. This pathogen is a) Stahylococcus aureus b) Streptococci pneumoniae c) Listeria monocytogens d) Streptocpccus pyogenesWhat does it mean for salmonellosis to have an iceberg effect?
- Why are staphylococcal infections becoming increasingly difficult to treat?Using figure (reproduced below) as a guide, explain theprocesses occurring between Salmonella (pink) and the surface of ahost cell (yellow) on both the left and the right side of the photo.Why is it necessary or advantageous for the body to make zymogens?
- All of the following pertain to listeriosis, except 1) intrauterine infection usually results in fetal death. 2) enterotoxin of the organism causes symptoms. 3) it causes a serious septicemia and meningitis in the elderly, immunocompromised, and infants. U 4) it causes symptoms of fever, diarrhea, and sore throat. 5) adequate pasteurization and thorough cooking of food can improve prevention.What are some Important facts about staphylococcus capitis? Why are they significant?Why does Helicobacter pylori cause ulceractions in the lining of the Stomach? 1)The microbes secrete a toxin that prevents the host from detecting invasion of the microbe and thus allows it to thrive in the stomach and damage the host cells. 2)After invasion of the microbe in the cells lining the stomach, they are no longer able to produce mucous to protect the host cells from acid erosion 3)The microbe produces an enzyme that causes the cell to produce potent digestive enzymes that erode the stomach lining. 4)Once the microbe has entered the stomach, it releases digestive enzymes that degrade the mucous secreting cells.