Flashcards in Chapter 25 Deck (79):
What is the route of transmission for microbial diseases of the digestive system?
fecal oral route
What is included in the GI tract?
mouth, pharynx, esophagus, stomach, small intestine, large intestine
What is included in the Accessory organs?
teeth, tongue, salivary glands, liver, gall bladder, pancreas
Where is the main place normal flora is found?
In large intestine, like E. coli
What is Dental Caries?
What bacteria causes dental caries?
What causes plaque?
an accumulation of microorganisms
What are treatments for cavities?
penicillin, root canal if necessary
How can you prevent cavities?
brushing, flossing, getting regular professional dental cleanings
What is Peridontal Disease?
inflammation and degeneration of structures that support the teeth.
inflammation of the gums (typically more superficial); common symptom is bleeding while brushing teeth
chronic Gingivitis that leads to tooth loss at an older age.
(lower digestive system)
colonization, penetration, and multiplication of microorganisms in intestinal mucose cell; may be enterotoxins; may be septicemia; S. typhi; E. coli
(lower digestive system)
preformed toxin, ingested, S. aureus; sudden diarrhea, abdominal cramps, nausea, vomiting
What causes Staphylococcal food poisoning?
How can you kill the toxin in Staphylococcal food poisoning?
heat stable; boil for 30 mins
What is the incubation period for Staphylococcal food poisoning?
What are the symptom of Staphylococcal food poisoning?
nausea, vomiting, diarrhea
Staphylococcal food poisoning is self limiting meaning....
it goes away on it's own after 24 hrs.
All Salmonella are considered ___________.
There are ____ types of Salmonella.
What kind of food is Salmonella gotten from?
meat products, eggs
__ degrees Celsius destroys all Salmonella organisms.
Typhoid fever is caused by what?
How can Typhoid fever be prevented?
proper sewage treatment (not often found in developed countries)
What is the treatment for Typhoid fever?
3rd generation Cephalosporins
What bacteria is causes Bacillary Dyscentery?
What is the main difference between diarrhea and dyscentery?
diarrhea- watery feces
dyscentery- mucousy, bloody feces
What causes Cholera?
Vibriocholerae; a Gram - curved rod.
In Cholera an __________ is produced.
What is the treatment for Cholera?
rehydration and Tetracycline
What is the mortality rate if Cholera goes untreated?
What is Vibrio Parahemolyticus Gastroenteritis?
Seafood borne food poisoning
What are symptoms of Vibrio Parahemolyticus Gastroenteritis?
abdominal pain, vomiting, stomach burning, watery stool
What is Vibrio Vulnificus?
Seafood borne illness also, 50% death rate
*List the 5 pathogenic E. Coli*
1. Enterotoxigenic E. Coli
2. Enteroinvasive E. Coli
3. Enteropathogenic E. Coli
4. Enterohemorrhagic E. Coli
5. Attaching Effacing E. Coli
Why is Enterohemorrhagic E. coli so serious?
Because it contains verotoxins which kills kidney cells.
50-60% of pathogenic E. Coli is Primary Traveller's Diarrhea, also called?
Enterotoxigenic E. Coli
What two kinds of E. Coli are often found in small children?
1. Enteroinvasive E. Coli
2. Enteropathogenic E. Coli
How can pathogenic E. Coli be prevented?
sanitation, water treatment
What does Helicobacter Pylori cause?
stomach ulcers and stomach cancer
Yersinia enterocolilica gastroenteritis has a gram __ rod.
Clostridium perfringens is what?
gram + , sporing, rod, anaerobic
Type A enterotoxin is...
Mumps is caused by what RNA virus?
What is the mode of transmission for Mumps?
What is the incubation period of Mumps?
What are the symptoms of Mumps?
fever, swelling of parotid glands, painful swallowing, sterility in both males and females
How can Mumps be prevented?
with the MMR vaccine
What family is Hepatitis in?
the enterovirus family
Hepatitis A is an RNA virus that is...
an infectious hepatitis
What is the route of transmission for hepatitis A?
What is the Incubation Period for Hepatitis A?
Is there a vaccine for Hepatitis A?
What is Hepatitis B?
A milder, enveloped, DNA virus
What is the mode of transmission for Hep B?
blood or bodily fluid transfer
What are the Symptoms of Hep B?
(same as Hep A)
anorexia, malaise, nausea, diarrhea, abd. discomfort, fever, chills, jaundice
Is there a vaccine for Hep B?
Hep B causes what type of cancer?
Hepatitis C is the most serious of the 3 and is what?
A single stranded RNA virus
What is the mode of transmission for Hep C?
blood transfusion, IV drug use, occupational
What is Rotavirus?
a double stranded RNA virus
Rotavirus is most common among...
those under 1 year of age
What are symptoms of Rotavirus?
diarrhea, low fever, vomiting
What are the treatments for Rotavirus?
rehydration, and a vaccination
What is Norovirus?
Norwalk Agent Gastroenteritis; causes adult diarrhea; but also found in children
What protozoa is responsible for Giardiasis?
What is the mode of transmission for Giardiasis?
What is the reservoir for Giardiasis?
What are symptoms of Giardiasis?
prolonged diarrhea, nausea, flatulence, weight loss, cramps
What causes Amoebic dyscentery?
What serious symptom can happen in Amoebic dyscentery?
may cause intestinal wall perforation
What causes Cryptosporidiosis?
What is the mode of transmission for Cryptosporidiosis?
What are reservoirs for Cryptosporidiosis?