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50 Cards in this Set

  • Front
  • Back

most plentiful form of available water

groundwater

most waterborne disease fatalities before 1940 caused by

typhoid fever

agent of cyclosporiasis

cyclospora cyetanensis

waterborne disease

ingestion of water w/ pathogen



water-washed disease

fecal-oral/ P2P caused by lack of clean water to wash with

Water-based infection

invasion of body through contact with water

water-related diseases

water provides breeding ground for insect vectors

Shigellosis (agent and common reservoir)

Shigella spp.


human feces

Botulism (agent and common reservoirs)

Clostridium botulinum


soil, animal/human feces, food

Emetic type bacillus cereus reservoir

boiled/fried rice

diarrheal type bacillus cereus reservoir

cereals, spices, veggies, milk

typhoid fever (agent and reservoir)

Salmonella typhi


feces/urine

Campylobacter enteritis (agent and reservoir)

Campylobacter jejuni


raw animal meat, raw milk, water



Amebiasis (agent and reservoir)

Entamoeba histolytica


feces, rats



Staphyloccocus food poisoning (agent and reservoir)

Staphyloccocus aureus


skin, membranes, pus, dust, air

Cholera (agent and reservoir)

Vibrio cholerae


feces, vomit

Yersiniosis (agent and reservoir)

Yersinia enterolitica


animals, birds, humans, surface water



Trichinosis (agent and reservoir)

Trichinella spiralis


Pigs, bears, rats, foxes, wolves

Cryptospordiosis

Cryptosporidium parvum


farm animals, fowl, cats, dogs, mice, man

Clostridium perfringins reservoir

soil, GI tract of mammals

Giardiasis (agent and reservoir)

Giardia lamblia


feces, dogs, beavers

Listeriosis (agent and reservoir)

Listeria monocytogenes


goats, cattle, humans, soil, water

Scromboid fish poisoning (agent and reservoir)

Scrombotoxin (histamine in muscle)


Fish

Water diseases occur more frequently in

non community water systems

crypto can survive in cold surface water for

18 months

3 factors that make developing countries susceptible to illnesses

1. contaminated drinking water


2. unhygienic housing


3. poor sanitation

tick reservoir, agent is Rickettsia ricketsii, transmitted by bite

Rocky Mountain Spotted Fever

fly infestation of human/ animal tissue with fly larvae

myiasis

viral infection spread by a bite from an infected Dermacentor andersoni wood tick

Colorado Tick Fever

reservoir rabbits, muskrats, etc.

tularemia

transmitted by tsetse flies, reservoir is humans, wild game and cattle

Trypanosomiasis, African Sleeping sickness

viral disease from Aedes species of mosquitos

Dengue fever

reservoir is birds

psittacosis

nematode worms, transmitted via mosquito bite, reservoir is human blood

Filariasis

Malaria (agent, reservoir, mode of transmission)

Plasmodium parasite


humans and mosquitos


bite of mosquito

a.k.a. woolsorter's disease

anthrax

fatality rate of inhaled anthrax

75%

Lead accumulates in

bones, blood, tissues

blood lead level considered pot. harmful to children?

10 ug/dL



CO level that causes headache


CO level that causes unconciousness

200-400 ppm


800-1600

level of Hg in blood considered poisonous

20 ppb

Substandard housing

1. 1.51 ppl/room


2. no private bath


3. dilapidated


4. no running water

CO limits of ___ ppm 8 hours, _____ ppm for 1 hour

9


35



Radon half-life, products

3.8 days, alpha decay products

Wash temp/time in hospital laundry

160F for 25 mins

Infectious waste can be treated for disposal by

autoclaving, incineration

frequency of SW in residential ares during warm months

2x/ week

Compost must attain _____ for _____ days

131F, 3 days

Waste is hazardous if it is ___________, _____________, & _____________

lethal, non degradable, accumulates in biological systems

4 characteristics of haz waste

Ignitable, Corrosive, Reactive, Toxic