Lecture 14 Flashcards
(23 cards)
The study of the relationship of various factors determining the frequency and distribution of disease
Epidemiology
The natural home/habitat or host of the causative agent; can be living or non-living
Reservoir (host)
What is the reservoir of the deer tick?
White tail deer
What is the reservoir for Toxocara canis?
Dogs
What is the reservoir for Borrelia burgdorferi (Lyme dz)?
White footed mouse
Organism that does not cause the dz, but spreads it from one host to another
Carriers (vectors)
True or false: some dogs can be subclinical carriers of Giardia
True
What is the source of leptospirosis infection?
Contaminated water
What is the reservoir of leptospirosis and how is it transmitted?
Wildlife through urination
Number of new cases of a disease during a specific time period; outbreak
Incidence
Total number of cases in existence in a given population at a certain time
Prevalence
Number of individual that get sick
Morbidity
Number of individuals that die
Mortality
Number of individuals that are recovering
Convalescent cases
Period of time from exposure to the time at which clinical signs manifest
Incubation period
True or false: flies transmit tapeworm and fleas transmit toxocara
False; fleas transmit tapeworm and flies transmit toxocara
True or false: ticks are the vectors for Lyme dz
True
What is the scientific name for the deer tick?
Ixodes scapularis
How is mycobacterium transmitted?
Coughing
Diseases of animals that are transmissible to man
Zoonotic disease
Common zoonotic diseases
Toxoplasmosis, Dermatophytes, Toxocara, Tuberculosis, Rabies, Plague
Cat is the reservoir; pregnant women gradening should wear gloves, transmitted by ingesting ova from feces, eating undercooked meat, drinking contaminated water
Toxoplasmosis
What does Toxocara canis cause in humans?
Visceral larva migrans
