Micro Ch 27: Bacterial Diseases And Intoxications Of The Gastrointestinal Tract

Front 1

What is the transmission mode of cholera?

Back 1

Cholera is transmitted by untreated water as well as fecal-oral spread

Front 2

What physiological reaction does choleragen affect?

Back 2

massive loss of electrolytes

Front 3

What notable differentiating characteristic does shigellosis have compared to salmonellosis?

Back 3

unlike salmonellosis, symptom shigellosis is bloody diarrhea with raspberry jam stool

Front 4

What is EMB agar used for?

Back 4

used to culture coliforms to trace the occurence of fecal contamination in water (well water) and other food sources

Front 5

infantile diarrhea

Back 5

caused by a local strain of E.coli. Transmission is fecal-oral and symptoms include diarrhea.

Front 6

traveler's diarrhea

Back 6

occurs when people encounter E coli with a new enterotoxin that they have never been exposed to. A symptom of the disease is diarrhea.

Front 7

cystitis and bacteriuria

Back 7

E. coli causes cystitis and bacteriuria, and symptoms include high frequency of urination with pain.

Front 8

Name of the organism, etiology, and disease characteristics of typhoid fever

Back 8

typhoid fever is caused by salmonella typhi. It is spread by chronic carriers who use inadequate hygiene procedures. Symptoms include intestinal ulcers, bloody diarrhea, rose spots, and stepladder fever.

Front 9

How long can carriers spread Salmonella typhi?

Back 9

throughout a lifetime

Front 10

Compare salmonellosis with typhoid fever.

Back 10

Salmonellosis is much less severe than typhoid. It is notable that the organisms are often transmitted from reptiles, such as turtles. Salmonellosis is also associated with raw eggs (in any dish), poultry, raw milk, and mayonnaise. Because Salmonella grow in chickens and other livestock, contamination of meat is frequent. Typhoid fever presents with intestinal ulcerations with bloody stools; bacteremia develops with resultant skin hemorrhages called rose spots and a stepladder fever that goes up and down each day. Typhoid fever spreads from symptomatic, as well as asymptomatic, chronic carriers who fail to wash adequately.

Front 11

Helicobacter pylori is assoc with what disease

Back 11

H pylori causes gastritis in otherwise healthy individuals. It is strongly assoc with about 90 percent of gastric ulcers and gastric cancer.

Front 12

How do people get botulism?

Back 12

People get botulism by eating canned foods that have not been adequately heated to kill spores.

Front 13

How does sporulation help Clostridium botulinum in survival and disease transmission?

Back 13

These orgs can survive boiling, freezing, and drought and remain viable in the soil for hundreds of years.