Shared Flashcard Set

Details

Exam 2
Various Foodborne Disease Agents
30
Veterinary Medicine
Professional
03/25/2016

Additional Veterinary Medicine Flashcards

 


 

Cards

Term
What causes Botulism? Is this an intoxication or an infection?
Definition
-Clostridium botulinum
-intoxication
Term
What is the time of onset of Botulism?
Definition
-18 hours to 2 days
Term
What are the symptoms of Botulism?
Definition
-double vision, vertigo, inability to swallow, speech difficulty and progressive resp paralysis, nausea
-progressive descending paralysis
Term
How does the neuroparalytic exotoxin of Botulism work?
Definition
-irreversible binding inhibits AChE
Term
Does Botulism have a high or low fatality rate? How is it treated?
Definition
-high at 65%
-antitoxin and respiratory support
Term
What are the common food source of Botulism?
Definition
-mostly low-acid canned foods: fruits & vegetables, some canned meats
-most cases come from improperly canned home foods
-herbal oils are another source
Term
How do we distroy botulinum toxin?
Definition
-heat
Term
At what age are children affected by infant botulism?
Definition
-most under 6m but any under 1y
Term
What are common sources of infeant botulism?
Definition
-honey, corn syrup, other foods, dust
Term
Does Staphylococcus aureus cause an infection or an intoxication? How does it respond to heat?
Definition
-intoxication due to an enterotoxin
-heat resistant
Term
What are some examples of foods that can transmit S. aureus?
Definition
-meats, hham, poultry, tuna
-potato & macaroni salads
-egg products
-dairy products & cream-filled pastries
-shed from udders of infected cows
Term
About ___% of people are carriers of Staph aureus.
Definition
-25%
Term
What are some human sources of Staph aureus?
Definition
-skin, infected cuts, pimples, noses, throats
Term
What is the time frame of an acute onset of Staphyloccoccal food poisoning? Symptoms? How long does it last?
Definition
-acute onset: 30 min ot 8 h usually 2-4 h
-nausea, vomiting, diarrhea, abdominal pain, cramps
-lasts 1-2 days
Term
How do we prevent Staphylococcal food poisoning?
Definition
-proper food refrigeration, education of food handlers to avoid contamination
Term
What is the primary reservoir of Yersinia entercolitica?
Definition
-pharynx of swine
Term
What does "psychrotrophic" mean? Example?
Definition
-grows at refrigeration temps but killed by freezing, heating, or pasteurixzation
-ex: Yersinia enterocolitica
Term
What are the oxygen requirements of Yersinia enterocolitica?
Definition
-grows under microaerophilic conditions
Term
What is Yersinia entercolitica's incubation period? How long do the symptoms last?
Definition
-3-7 days
-<10d
Term
What are the symptoms of Yersinia entercolitica?
Definition
-bloody diarrhea, vomiting, abdominal pain, diarrhea, fever
Term
What is the general cause of Clostridium perfringens toxico-infection?
Definition
-failure to keep foods hot, especially meat products
-enterotoxin is produced during sporulation
Term
What is the incubation period of Clostridium perfringens?
Definition
-8-12h
Term
What are the symptoms of Clostriudium perfringens?
Definition
-colic and diarrhea
Term
Humans are the principle reservoir of what cause of bacterial enteritis?
Definition
-Shigella spp and Vibrio cholera
Term
What pathogens causing bacterial enteritis are associated with shell fish and seafood?
Definition
-Vibrio parahyemolyticus and V. vulnificus
Term
What is the primary host of Norovirus?
Definition
-Humans
Term
What are the symptoms of Norovirus?
Definition
-nausea, vomiting, diarrhea for about 36 hours
Term
What are the sources of noroviruses?
Definition
-human feces, raw shellfish from sewage-polluted waters, food prepared by infected persons
Term
What is the incubation period of Hepatitis A virus?
Definition
-about 1m
Term
What are the symtpoms of Hepatitis A?
Definition
-jaundice, fever, malaise, nausea, vomiting for about 1-2 weeks
Supporting users have an ad free experience!