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Micro study guide 6, Zoonosis (revised)
Zoonosis
41
Microbiology
Undergraduate 1
04/19/2012

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Term
Infection with this worldwide distribution virus causes uniformly fatal encephalitis if not neutralized at the right time
Definition
Rabies
Term
average incubation period of rabies?
Definition
1-3 months or more depending on wound site, severity & inoculation dose
Term
Untreated human infection with this microbe can lead to liver and kidney damage (Weil’s disease),
Definition
Leptospira interrogans (Leptospirosis)
Term
Dogs shed these spirochetes in their urine even after vaccination and rodents are the only major animal species that can shed it throughout their life-span without clinical manifestations
Definition
Leptospirosis
Term
Rocky Mountain spotted fever is transmitted by what vector?
Definition
Tick
Term
Rocky Mountain spotted fever is a bacterial, virus, fungal, or protozoal disease?
Definition
Bacteria
Term
What is the best way to remove a tick from the skin?
Definition
in book
Term
Is trichinosis is bacterial, helminthes, virus, fungal, or protozoal disease?
Definition
Helminth (muscles-pain, inflammation, fever)
Term
Eating under cooked infected bear meat might get you infected with what disease
Definition
Trichinellosis (helminth)
Term
Pigs that feed on garbage containing infected meat scraps with this microbe might become a source of infection to humans consuming undercooked meat of such pigs, what is this microbe?
Definition
Trichinellosis
Term
Tinea pedis is another name for what kind of infection
Definition
athlete's foot
Term
Jock itch is another name for infection with what microbe
Definition
Tinea cruris
Term
Is Ring worm infection a zoonotic disease?
Definition
Yes
Term
What are the three outcomes of infection with the plague?
Definition
1. Bubonic – bacillus from flea bite, enters lymph nodes swelling in groin – bubo.
2. Septicemia – massive bacteria growth.
3. Pneumonic – infection localized to lungs.
Term
What are the major reservoirs for Francisella tularensis
Definition
rabbits, hares, rodents.
Term
What are the major reservoirs for Lyme disease
Definition
deer & field mice
Term
What is the vector for Lyme disease?
Definition
Tick
Term
What is the most common tick-transmitted disease in the USA?
Definition
Most common -Lyme disease.
Term
What is the most severe tick-transmitted disease in the USA?
Definition
tick-borne Rocky Mt. Spotted Fever
Term
A strong indication of the Lyme disease tick bite
Definition
Bullseye appearance (erythema migrans), stiff neck & headache
Term
Most common outcome of infection with the Lyme disease bacterium that appear later on in the course of infection
Definition
Cardiac involvement, neurologic/facial nerve palsy. If untreated, arthritis
Term
What is the definitive host for Toxoplasmosis?
Definition
Cats
Term
Ways to contract plague
Definition
Flea bites, handling infected animals, inhaling droplets (wild & domestic animal contact)
Term
Types of anthrax
Definition
Cutaneous – spores enter thru cuts, abrasions causing black sore; Least dangerous
Pulmonary (woolsorter's disease) Septicemia and toxemia Lead to Death
GI – poorly cooked infected meat Sores can make swallowing and breathing difficult
Term
Transmission ways of toxoplamsmosis
Definition
Ingested meat & unpasteurized milk
Term
Rabies Diagnosis and treatment
Definition
Diagnosis – Known bite
Treatment –
1. Wash & disinfect site with peroxide or alcohol.
2. Infuse site with Immune Globulin and Serial Vaccination
Term
Definitions of zoonotic diseases
Definition
Primarily of animal transmitted to humans with direct or indirect contact with infected animal
Term
Causative agent for Undulant fever
Definition
– Brucella (brucellosis)
Term
Causative agent for Black Death
Definition
– Yersinia pestis (plague) facultative gr neg bacteria
Term
Causative agent for Woolsorter’s disease
Definition
– Bacillus anthracis (anthrax)
Term
Causative agent for Rabbit fever
Definition
– Francisella tularensis (Tularemia)
Term
Causative agent for Deer-fly fever
Definition
– Francisella tularensis
Term
Causative agent for Bacillary dysentery
Definition
– Shigella
Term
What kind of occupational contact can predispose for infection with brucellosis
Definition
slaughterhouses, livestock handler, dairy workers, veterinarians
Term
Symptoms of undulant fever
Definition
Fluctuating fever, chills, profuse sweating, muscle pain, weakness & weight loss
Term
Why treatment with antibiotics for brucellosis disease has to be long
Definition
Because symptoms can last few weeks to up to a year
Term
How humans develop plague
Definition
handling infected wild and domestic animals, inhaling droplets
Term
What is the vector for transmitting the plague?
Definition
Fleas
Term
What is the bubo in the bubonic plague?
Definition
Painful swelling in groin or axilla
Term
Is plague a contagious disease
Definition
Yes
Term
What is the disease of livestock and humans, caused by an endospore former?
Definition
Anthrax
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