Microbiology Chapter 22
All of the following are true regarding African trypanosomiasis EXCEPT
all subspecies of Trypanosoma brucei have multiple hosts.
The symptoms of tetanus are due to
tetanospasmin.
0 / 1 ptsAll of the following diseases are caused by arbovirus EXCEPT
primary amebic meningoencephalitis (PAM).
The most effective control of mosquito-borne disease is
elimination of the mosquito population.
Initial treatment for tetanus in an unimmunized person with a puncture wound is
tetanus immune globulin.
Initial treatment for tetanus in a fully immunized person with a puncture wound is
tetanus toxoid.
The most common route of central nervous system invasion by pathogens is through
the circulatory system.
All of the following are associated with botulism outbreaks EXCEPT
Alaskan natives have the lowest rate of botulism in the world.
A pathologist detects Negri bodies while examining a brain section taken at autopsy. What was the cause of death?
rabies
Bacterial encephalitis and meningitis are difficult to treat because
many antibiotics cannot penetrate the blood-brain barrier.
Encephalitis is more common in the summer months because
mosquito populations increase.
Which of the following pairs is mismatched?
poliomyelitis — respiratory route
Each of the following is caused by prions EXCEPT
rabies.
All of the following are true of chronic fatigue syndrome EXCEPT
it is a psychological disorder.
A physician diagnoses a patient with lepromatous Hansen's disease. All of the following pertain to the patient EXCEPT
treatment will include injections of penicillin.
Arboviruses cause ________ and are transmitted by ________.
encephalitis; mosquitoes
All of the following organisms cause meningitis EXCEPT
Mycobacterium leprae.
Which of the following is treated with antibiotics?
streptococcal pneumonia
Which one of the following causes the most severe illness in humans, with a mortality rate of 30 percent?
eastern equine encephalitis
Microscopic examination of cerebrospinal fluid reveals gram-positive rods. What is the organism?
Listeria
On October 5, a pet store sold a kitten that subsequently died. On October 22, rabies was diagnosed in the kitten. Between September 19 and October 23, the pet store had sold 34 kittens. Approximately 1000 people responded to health care providers following local media alerts. These people were given
postexposure prophylaxis.
Vaccination is available for all the following EXCEPT
botulism.
Patients with leprosy usually die from complications such as
tuberculosis.
All of the following are acquired by ingestion EXCEPT
cryptococcosis.
Which of the following statements about Neisseria meningitis is FALSE?
It is a gram-positive anaerobe.
Which of the following pairs is mismatched?
botulism — stimulates transmission of nerve impulse
All of the following microorganisms can directly cause meningitis EXCEPT
mosquitoes.
Which of the following vaccines can cause the disease it is designed to prevent?
oral polio vaccine
All of the following are true of M. leprae EXCEPT
it has a very short generation time of approximately twelve hours.
Which of the following pairs is mismatched?
Cryptococcus neoformans — acid-fast rod
Which of the following statements about leprosy is FALSE?
Patients with leprosy must be isolated.
All of the following organisms are transmitted via the respiratory route EXCEPT
Listeria monocytogenes.
Which of the following statements about rabies is FALSE?
Most infections in the U.S. are the result of bites from infected dogs.
CSF contains high levels of complement and circulating antibodies to prevent infection of the brain and spinal cord.
False
Viral meningitis is much more common than bacterial meningitis and tends to cause a milder form of disease.
True