Unit 7: Epidemiology
Which population presented in the graph above has the greatest incidence of disease? If more than one population has the same incidence of disease, use the same rules as before for inputing multiple answers (AB, not BA or A, B)
B
Based on the figure above, which of the populations are experiencing an epidemic? Enter your answer choices alphabetically with no spaces or characters between the letters. If all 5 populations were experience an epidemic, the answer would be ABCDE.
BD
Based on the figure above, which of the populations are experiencing an epidemic? Enter your answer choices alphabetically with no spaces or characters between the letters. If all 5 populations were experience an epidemic, the answer would be ABCDE.
BD B
This pathogenic bacterium is a spirochete transmitted by tick bites. It causes Lyme Disease.
Borrelia burgdorferi
Q Fever is caused by which of the following pathogens?
Coxellia burnettii
Which organism is *NOT* transmitted by a tick, flea, louse, mosquito or other arthropod?
Coxiella burnetii
Based on the map presented below, where is a person most likely to contract Rabies from a mongoose? Bats are the most common vector of rabies in the US and are omitted from the map.
Puerto Rico
Based on the map presented below, what is the most common vector for Rabies Virus along the East Coast of the US? Bats are the most common vector nationally and are omitted from the map below.
Raccoon
Which organism enters the host when a louse first bites the host, and then defecates in the wound?
Rickettsia prowazekii
Typhus is caused by which of the following pathogens?
Rickettsia prowzekii
Rocky Mountain Spotted Fever is most likely caused by which of the following pathogens?
Rickettsia rickettsia
Based on the map presented below, what is the most common vector for Rabies Virus in the state of California? Bats are the most common vector nationally and are omitted from the map below.
Skunk
Based on the map presented below, where is a person most likely to contract Rabies from either a skunk or a fox? Bats are the most common vector of rabies in the US and are omitted from the map.
Texas, New Mexico, or Arizona
The onset of a given epidemic is indicated by a sharp rise in the number of cases reported daily over a brief interval. This indicates that the mode of transmission is
a common source
Typhoid Mary was an example of
a subclinical infection; a carrier for a disease; an asymptomatic infection.
What is a/are potential reservoir(s) for the rabies virus?
bats
Which of the following is an example of a fomite?
doorknob
Which of the following are NOT vectors important in disease transmission?
fomites
Epizootic
incidences reaching epidemic proportions in certain populations
Which stage of an acute infectious disease occurs between the time the organism begins to grow in the host and the appearance of disease symptoms?
incubation period
Influenza pandemics occur cyclically because
new strains emerge due to reassortment between bird, swine, and human variants.
A large number of cases of a particular disease observed in a relatively short period of time in an area that previously experienced only sporadic cases of the disease is known as a(n)
outbreak
Enzootic
present endemically in certain populations
Which of the following are commonly classified as disease reservoirs?
soil, water, ...
Cholera is an example of a pandemic disease that
spreads from a common source and could be controlled with adequate clean water and waste sanitation measures.
Which of the following is/are considered (a) direct contact infection(s)?
syphilis, gonorrhea, and skin infections
Which public health measure(s) is/are most effective against pathogens transmitted through common vehicles?
water purification and food safety regulations
A ________ is a disease that primarily infects animals but can be transmitted to humans.
zoonosis
Which organism causes rabbit fever?
Francisella tularensis
Which of the following is an example of herd immunity?
If 70% of the population is immunized against polio, the disease will be essentially absent from the population.
Who is often considered the father of Epidemiology?
John Snow
Based on Figure 2, which of the following statements is a true statement?
Line 1 represents a common-source infection, while line 2 represents a person-to-person infection.
Which disease is spread by the deer tick?
Lyme Disease
Which of the following are illnesses associated with ticks?
Lyme Disease, Rocky Mountain Spotted Fever
The most common vector-borne disease in the United States is
Lyme disease.
Below are 5 lists. Which list contain only groups of people likely to have compromised immune systems?
People receiving chemotherapy, HIV patients, organ transplant recipients, people with autoimmune disorders.
This pathogenic bacterium is transmitted by tick bites. This species causes Monocytic Ehrlichiosis. The bacterium can proliferate in human red blood cells and the disease has flu-like symptoms.
Ehrlichia chaffeensis
