Environmental Health and Food Safety Flashcards
What are the two types of water pollution?
chemical pollution and biological pollution
What was the epidemic that occurred in Walkerton Ontario?
E. coli (largest waterborne epidemic in Canada)
Where do we get ground water?
deep underground aquifers and springs
Where do we get surface water?
lakes, reservoirs, streams
How do we measure if water is safe to drink?
1 coliform (gut bacteria) per 100 mL
What are the 5 steps of water treatment?
filtration, sedimentation, coagulation, filtration, chlorination
What is the clinical name for cholera?
vibrio cholerae
How does a person get cholera?
fecal-oral (contaminated water source with human feces)
What is the leading cause of aquatic facility outbreaks?
cryptosporidium parvum (unicellular protozoa)
What causes ameobic meningoencephilitis (eats the brain)?
naegleria fowleri
What are some features of intoxication?
preformed pathogen, heat sensitive, fast onset, violent diarrhea and vomiting
What do we find clostridium botulinum?
improperly canned foods; and honey!
What is the most common cause of foodborne illness and most persistent?
salmonella
What is a big disease in pregnant women and cause of the Maple Leaf outbreak?
listeria
What is the virus that causes acute disease of the liver and jaundice; found in improperly cooked shellfish?
hepatitis A
