Microbiology (BIO 203) Exam #3 on Chapters 22, 23, 24, 25

An 8-year-old girl in rural Wisconsin has chills, headache, and fever and reports having been bitten by mosquitoes. How would you confirm your diagnosis? A) ELISA test for IgM antibodies B) Brain biopsy for inclusions C) Gram stain of cerebrospinal fluid D) Examination of local mosquitoes E) Complement fixation test for IgG antibodies

A) ELISA test for IgM antibodies

EB virus has been implicated in all of the following EXCEPT... A) Endocarditis B) Infectious mononucleosis C) Burkitt's lymphoma D) Nasopharyngeal carcinoma E) Hodgkin's disease

A) Endocarditis

Which one of the following causes a disease characterized by the catarrhal, paroxysmal, and convalescent stages? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Mycobacterium tuberculosis D) Streptococcus pyogenes E) Respiratory syncytial virus

A) Bordetella pertussis

A patient has pneumonia. Gram-negative rods are cultured on nutrient agar from a sputum sample. The etiology is... A) Burkholderia pseudomallei B) Chlamydophila psittaci C) Haemophilus influenzae D) Legionella pneumophila E) Streptococcus pneumonia

A) Burkholderia pseudomallei

Which of the following is NOT a gram-negative rod that causes gastroenteritis? A) Clostridium B) Escherichia C) Salmonella D) Shigella E) Yersinia

A) Clostridium

The patient is suffocating because of the accumulation of dead tissue and fibrin in her throat. What is the etiology? A) Corynebacterium B) Haemophilus C) Bordetella D) Mycobacterium E) Can't tell

A) Corynebacterium

Which statement regarding arboviral encephalitis is FALSE?

The most effective preventive measure for arboviral infections is vaccination.

Which one of the following causes a disease characterized by a red rash? A) Blastomyces B) Coccidioides C) Mycoplasma D) Streptococcus E) RSV

D) Streptococcus

Scrapings from a patient's rash reveal cercariae. The disease is most likely A) Lyme disease B) Rocky Mountain spotted fever C) Relapsing fever D) Swimmer's itch E) Chagas' disease

D) Swimmer's itch

CH22#2 The symptoms of tetanus are due to... A) Endospore formation B) Systemic infection C) Sustained relaxation of muscles D) Tetanospasmin E) Inflammation

D) Tetanospasmin

Which of the following is NOT controlled by a mosquito eradication program? A) Chikungunya fever B) Yellow fever C) Dengue D) Toxoplasmosis E) Malaria

D) Toxoplasmosis

Which of the following is NOT treated with antibiotics? A) Plague B) Tularemia C) Lyme disease D) Yellow fever E) Anthrax

D) Yellow fever

The common source of contamination in the majority of cases of staphylococcal food poisoning (intoxication) is... A) fecal contamination B) contaminated water C) dairy products D) the skin of food preparers E) eggs

D) the skin of food preparers

Which of the following requires treatment with both antibiotics and antitoxins?

Diptheria

CH24#4 Which of the following causes opportunistic infections in AIDS patients? A) Pneumocystis B) Aspergillus C) Rhizopus D) Mucor E) All of the answers are correct

E) All of the answers are correct

The symptoms of gas gangrene are due to all of the following EXCEPT A) Microbial fermentation B) Necrotizing exotoxins C) Proteolytic enzymes D) Hyaluronidase E) Anaerobic environment

E) Anaerobic environment

For which of the following is a vaccine NOT available? A) Haemophilus meningitis B) Neisseria meningitis C) Tetanus D) Rabies E) Botulism

E) Botulism

The patient has a sore throat. What is the etiology? A) Corynebacterium B) Haemophilus C) Bordetella D) Mycobacterium E) Can't tell

E) Can't tell

CH25#7 Which of the following organisms feeds on RBC?

E) Entamoeba histolytic

CH23#9 Bioweapons... A) Are all respiratory pathogens B) Are not susceptible to abx C) Are all viruses D) Are impossible to detect E) Have been used for centuries

E) Have been used for centuries

The symptoms of tetanus are due to... A) Endospore formation B) Systemic infection C) Sustained relaxation of the muscles D) Tetanospasmin E) Inflammation

Tetanospasmin

CH24#9 The most effective means of preventing influenza is... A) Annual vaccination B) Isolation of carriers C) Vector control D) Pasteurization of milk E) Administration of amantadine

A) Annual vaccination

CH24#5 Which one of the following causes a disease characterized by the catarrhal, paroxysmal, and convalescent stages? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Mycobacterium tuberculosis D) Streptococcus phogenes E) Respiratory syncytial virus

A) Bordetella pertussis

CH24#3 Which of the following requires treatment with both antibiotics and antitoxins? A) Diphtheria B) Tuberculosis C) Whooping Cough D) Scarlet Fever E) Psittacosis

A) Diphtheria

CH22#9 A 30 y/o woman was hospitalized after she experienced concussions. On exam, she was A/O and c/o fever, HA, and stiff neck. Which of the following is most likely to provide rapid ID of the cause of her sx? A) Gram stain of CSF B) Gram stain of throat culture C) Biopsy of brain tissue D) Check serum antibodies E) None of these would provide rapid ID

A) Gram stain of CSF

CH24#1 Which of the following microorganisms causes symptoms most like tuberculosis? A) Histoplasma B) Coccidioides C) Legionella D) Mycoplasma E) Influenzavirus

A) Histoplasma

CH22#6 The prodromal symptom(s) of bacterial meningitis is/are... A) Mild cold symptoms B) fever and headache C) Stiff neck and back pains D) Convulsions E) Fever, headache, and stiff neck

A) Mild cold symptoms

CH25#4 The digestive tract is essentially one long tube. The order of the structures, beginning with the mouth, is...

A) Pharynx, esophagus, stomach, small intestine, large intestine

CH24#10 Which of the following is an opportunistic pathogen? A) Pnemocystis B) Legionella C) Histoplasma D)Mycoplasma E) rhinovirus

A) Pnemocystis

CH22#7 A pathologist detects Negri bodies while examining a brain section taken at autopsy. What was the cause of death? A) Rabies B) Meningococcal meningitis C) East Equine Encephalitis D) Hansen's Disease E) Poliomyelitis

A) Rabies

CH23#7 Which of the following is evidence that the arthritis afflicting children in Lyme, Connecticut was due to bacterial infection? A) Treatable with penicillin B) Not contagious C) Accompanied by rash D) Affected mostly children E) Transmitted by ticks

A) Treatable with penicillin

CH23#5 Which of the following is the same for both relapsing fever and undulant fever? A) Vector B) Mode of transmission C) Presence of rash D) Reservoir E) Etiology

A) Vector

Aflatoxin is produced by...

Aspergillus flavus

On June 30, a 47-year-old man was hospitalized with dizziness, blurred vision, slurred speech, difficulty swallowing, and nausea. Examination revealed facial paralysis. The patient had partially healed superficial knee wounds incurred while laying cement. Cultures taken from the knee wounds should be incubated A) Aerobically B) Anaerobically C) In 510% CO2 D) In animal cell culture E) Any of the above will work

B) Anaerobically

CH25#5 Which of the following helminthic diseases is a common infestation found in the southeastern US?

B) Ascaris lumbricoides

A characteristic symptom of plague is A) Small red spots on the skin B) Bruises on the skin C) Rose-colored spots D) Recurrent fever E) Nausea and vomiting

B) Bruises on the skin

A 15-year-old girl was hospitalized with fever, lethargy, and rash. Gram-negative, oxidase-positive cocci were cultured from her cerebrospinal fluid. Her symptoms were caused by A) A prion B) Clostridium tetani C) Mycobacterium leprae D) Neisseria meningitidis E) Lyssavirus

B) Clostridium tetani.

Inhalation of arthroconidia is responsible for infection by which of the following organisms? A) Blastomyces B) Coccidioides C) Mycoplasma D) Streptococcus E) Chlamydophila

B) Coccidioides

CH24#6 Which of the following is an irregular, gram-positive rod? A) Bodetta pertussis B) Corynebacterium dephtheriae C) Burkholderia pseudomallei D) Streptococcus progenies E) Pneumosystis jirovecii

B) Corynebacterium dephtheriae

CH24#8 Which of the following produces the most potent exotoxin? A) Bodetta pertussis B) Corynebacterium dephtheriae C) Mycobacterium tuberculosis D) Streptococcus progenies E) Streptococcus pneumonia

B) Corynebacterium dephtheriae

CH23#3 Which of the following can be transmitted form an infected mother to her fetus across the placenta? A) Borrelia B) Cytomegalovirus C) Spirillum D) Anthrax E)Yersinia

B) Cytomegalovirus

CH23#6 Which of the following produces a permanent carrier state following infection? A) Borrlia B) Cytomegalovius C) Spirillum D) Toxoplasma E) Yersinia

B) Cytomegalovius

CH24#2 Which of the following diseases has a cutaneous form, especially in individuals over 30 years of age? A) Coccidioidomycosis B) Diphtheria C) Legionellosis D) Scarlet fever E) None of the above

B) Diphtheria

The patient is suffocating because of an inflamed epiglottis. What is the etiology? A) Corynebacterium B) Haemophilus C) Bordetella D) Mycobacterium E) Can't tell

B) Haemophilus

Microscopic examination of cerebrospinal fluid reveals gram-positive rods. What is the organism? A) Haemophilus B) Listeria C) Naegleria D) Neisseria E) Streptococcus

B) Listeria

CH23#8 A 62 y/o man was hospitalized with an 8 day hx of f/c, sweats, vomiting. His temperature on admission was 40 degrees C. A routine peripheral blood smear revealed ring-shaped bodies in the RBC. What treatment would you rx? A) Hyperbaric O2 B) Mefloquine C) No tx D) Penicillin E) Streptomycin

B) Mefloquine

CH25#3 Which of the following disease of the GI system is transmitted by the respiratory route?

B) Mumps

CH25#10 Acute gastroenteritis that occurs after an incubation period of two to three days and commonly affects children in probably caused by...

B) Rotavirus

CH25#6 Poultry products are a likely source of infection by...

B) Salmonella enterica

CH23#2 Which of the following bacterial infections CANNOT be transmitted by dog or cat bites? A) Pasteurella multocida B) Streptobacillis C) Bartonella henselae D) Fusobacterium E) None of the answers are correct; all of these bacterial infections can be transmitted by dogs or cat bites

B) Streptobacillis

Which of the following CANNOT be transmitted to humans from domestic cats? A) Toxoplasmosis B) Plague C) Chagas' disease D) Bartonella E) None of these diseases is transmitted by cats.

C) Chagas' disease

CH22#3 The most effective control of mosquito-borne disease is... A) Treatment of infected humans B) Treatment of infected wild animals C) Elimination of the mosquito population D) Avoidance of endemic areas E) Treatment of uninfected humans

C) Elimination of the mosquito population

Which of the following is NOT a free-living amoeba that can cause encephalitis? A) Acanthamoeba B) Balamuthia C) Entamoeba D) Naegleria E) None of the above; free-living amoebas don't cause disease.

C) Entamoeba

CH25#2 Clostridium difficile-associated diarrhea is usually preceded by...

C) Extended use of antibiotics

Bacterial intoxications differ from bacterial infections of the digestive system in that intoxications... A) Are transmitted via water B) Are more severe C) Have shorter incubation times D) Are treated with antibiotics E) Are accompanied by fever

C) Have shorter incubation times

Which of the following statements about staphylococcal food poisoning is false? A) Suspect foods are those not cooked before eating. B) It can be prevented by refrigeration C) It can be prevented by boiling foods for 5 minutes before eating D) It is treated by replacing water and electrolytes E) It is characterized by rapid onset and short duration of symptoms

C) It can be prevented by boiling foods for 5 minutes before eating

CH25#1 Which of the following is directly involved in the initiation of dental caries?

C) Lactic acid

A patient has the following symptoms: a papule, enlarged lymph nodes. Microscopic examination of the papule reveals nucleated cells in white blood cells. The patient most likely has.. A) Anthrax B) Brucellosis C) Leishmaniasis D) Malaria E) Schistosomiasis

C) Leishmaniasis

Helicobacter can grow in the stomach because it... A) Hides in macrophages B) Makes a capsule C) Makes NH3 D) Makes HCl E) None of the above

C) Makes NH3

CH24#7 Infection by which of the following results in the formation of Ghon complexes? A) Bodetta pertussis B) Corynebacterium dephtheriae C) Mycobacterium tuberculosis D) Streptococcus progenies E) Blastomyces dermatidis

C) Mycobacterium tuberculosis

CH23#4 Human to human transmission of plaque is usually by... A) Rat flea B) Dog flea C) The respiratory route D) Wounds E) Unsanitary conditions

C) The respiratory route

Human-to-human transmission of plague is usually by A) Rat flea B) Dog flea C) The respiratory route D) Wounds E) Unsanitary conditions

C) The respiratory route

CH23#10 Which of the following statements about Group B Streptococci is FALSE? A) They are presents in healthy carriers B) They cause gram positive sepsis C) They cause strep throat D) They cause neonatal sepsis E) They are classified as Streptococcus agalactiae

C) They cause strep throat

Which of the following organisms is likely to be transmitted via undercooked pork and horse? A) Salmonella B) Staphylococcus C) Trichinella D) Entamoeba E) Shigella

C) Trichinella

CH23#1 Which of the following is a symptoms of brucellosis? A) Gastroenteritis B) Relapsing fever C) Undulant fever D) Pneumonia E) Jaundice

C) Undulant fever

Which of the following does NOT cause otitis media? A)Haemophilus influenzae B) Streptococcus pneumoniae C) Moraxella catarrhalis D)Coxiella burnetii E) Streptococcus pyogenes

Coxiella burnetii

CH25#8 In humans, beef tapeworm infestations are acquired by ingesting...

D) Cystycerci of Taenia saginata in undercooked meat

CH22#10 Arboviruses cause ___________ and are transmitted by ___________. A) Meningitis; exposure to certain trees B) Meningitis; mosquitos C) Encephalitis; exposire to certain trees D) Encephalitis; mosquitos E) Both meningitis and encephalitis; mosquitos

D) Encephalitis; mosquitos

CH25#9 The most common cause of traveller's diarrhea is...

D) Escherichia coli

CH22#8 Encephalitis is more common in the summer months because... A) Pathogens are present in swimming pools and lakes B) Ameba populations increase in swimming pools C) Ticks are encountered while hiking in the woods D) Mosquito populations increase E) People encounter more bats during warm summer evenings

D) Mosquito populations increase

Which one of the following organisms does NOT belong with the others? A) Blastomyces B) Coccidioides C) Histoplasma D) Mycobacterium E) Pneumocystis

D) Mycobacterium

All of the following are true of poliomyelitis EXCEPT a. the majority of cases are asymptomatic b. initial sites of viral replication are the throat and small intestine c. infection is due to ingestion of contaminated water d. the oral polio vaccine contains attenuated strains of the virus e. most cases result in muscle paralysis

e. most cases result in muscle paralysis

Which of the following is the same for both relapsing fever and undulant fever? A) Vector B) Mode of transmission C) Presence of rash D) Reservoir E) Etiology

A) Vector

Which of the following is the most common cause of meningitis? A) A virus B) A bacterium C) A protozoan D) A fungus

A) A virus

Legionella is transmitted by... A) Airborne transmission B) Foodborne transmission C) Person-to-person contact D) Fomites E) Vectors

A) Airborne transmission

A patient presents with inflammation of the heart valves, fever, malaise, and subcutaneous nodules at joints. The recommended treatment is A) Anti-inflammatory drugs B) Streptomycin C) Chloroquine D) Hyperbaric chamber E) Praziquantel

A) Anti-inflammatory drugs

A patient has a paroxysmal cough and mucus accumulation. What is the etiology of the symptoms? A) Bordetella B) Corynebacterium C) Klebsiella D) Mycobacterium E) Mycoplasma

A) Bordetella

A predisposing factor for infection by Clostridium perfringens is... A) Gangrene B) Burns C) Debridement D) Hyperbaric treatment E) An infected finger

A) Gangrene

Which of the following statements about puerperal sepsis is false? A) It is transmitted from mother to fetus B) It is caused by healthcare personnel C) It begins as a focal infection D) It is a complication of abortion or childbirth E) It doesn't occur anymore because of antibiotics and aseptic techniques

A) It is transmitted from mother to fetus

A 15-year-old girl was hospitalized with fever, lethargy, and rash. Gram-negative, oxidase-positive cocci were cultured from her cerebrospinal fluid. Which of the following statements about the microbe responsible for her symptoms is false? A) It may be normal in the cerebrospinal fluid B) It may be normal in the throat C) It may be treated with antibiotics D) It may cause epidemics E) It may be prevented with a vaccine

A) It may be normal in the cerebrospinal fluid

The prodromal symptom(s) of meningitis is (are) A) Like a mild cold B) Fever and headache C) Stiff neck and back pains D) Convulsions E) Paralysis

A) Like a mild cold

Which of the following statements about Mycobacterium leprae is FALSE? A) Patients must be put into isolation B) Patients transmit the disease directly C) Patients rarely die of the disease D) A skin biopsy sample can be used for diagnosis

A) Patients must be put into isolation

Which of the following is an opportunistic pathogen? A) Pneumocystis B) Legionella C) Histoplasma D) Mycoplasma E) Rhinovirus

A) Pneumocystis

Which of the following is NOT transmitted by ingestion? A) Poliomyelitis B) Listeriosis C) Botulism D) Meningococcal meningitis E) Creutzfeldt-Jakob disease

A) Poliomyelitis

Which of the following is NOT a zoonosis? A) Puerperal sepsis B) Hantavirus infection C) Anthrax D) Brucellosis E) Tularemia

A) Puerperal sepsis

CH22#4 Initial treatment for tetanus in a fully immunized person with a puncture wound is... A) Tetanus toxoid B) Tetanus immune globulin C) Penicillin D) DTaP E) Debridement

A) Tetanus toxoid

Initial treatment of tetanus in a fully immunized person with a puncture wound is... A) Tetanus toxoid B) Tetanus immune globulin C) Penicillin D) DTaP E) Debridement

A) Tetanus toxoid

Typhoid fever differs from salmonellosis in that in typhoid fever... A) The microorganisms become invasive B) The symptoms are due to an exotoxin C) The symptoms are due to infection of the gallbladder D) The classic symptom is diarrhea E) Chemotherapy is highly effective

A) The microorganisms become invasive

Which of the following is evidence that the arthritis afflicting children in Lyme, Connecticut, was due to bacterial infection? A) Treatable with penicillin B) Not contagious C) Accompanied by a rash D) Affected mostly children E) Transmitted by ticks

A) Treatable with penicillin

All of the following are used as first-line drugs for treating tuberculosis EXCEPT... A) fluoroquinolone B) pyrazinamide C) ethambutol D) rifampin E) isoniazid

A) fluoroquinolone

All of the following diseases are caused by arbovirus EXCEPT... A) primary amebic meningoencephalitis (PAM) B) St. Louis encephalitis C) eastern equine encephalitis D) West Nile encephalitis E) None of the answers is correct; all of these diseases are caused by arbovirus

A) primary amebic meningoencephalitis (PAM).

Naegleria fowleri meningoencephalitis is commonly acquired by A) swimming in warm ponds or streams B) exposure to bird droppings C) exposure to body fluids of a contaminated individual D) ingestion of water contaminated with fecal material E) mosquito bites

A) swimming in warm ponds or streams

Arthropods can serve as a reservoir for which of the following diseases? A) Plague B) Brucellosis C) Epidemic typhus D) Yellow fever E) Malaria

B) Brucellosis

Microscopic examination of a lung biopsy shows spherules. What is the etiology? A) Blastomyces B) Coccidioides C) Histoplasma D) Mycobacterium E) Pneumocystis

B) Coccidioides

Which of the following is NOT an intracellular parasite? A) Chlamydophila B) Coccidioides C) Coxiella D) Influenzavirus E) RSV

B) Coccidioides

Which one of the following is an irregular, gram-positive rod? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Myobacterium tuberculosis D) Streptococcus pyogenes E) Pneumocystis jirovecii

B) Corynebacterium diphtheriae

Which one of the following produces the most potent exotoxin? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Mycobacterium tuberculosis D) Streptococcus pyogenes E) Streptococcus pneumoniae

B) Corynebacterium diphtheriae

Which of the following is NOT acquired by ingestion? A) Botulism B) Cryptococcosis C) Listeriosis D) Poliomyelitis E) Creutzfeldt-Jakob disease

B) Cryptococcosis

Which of the following can be transmitted from an infected mother to her fetus across the placenta? A) Borrelia B) Cytomegalovirus C) Spirillum D) Toxoplasma E) Yersinia

B) Cytomegalovirus

Which of the following produces a permanent carrier state following infection? A) Borrelia B) Cytomegalovirus C) Spirillum D) Toxoplasma E) Yersinia

B) Cytomegalovirus

Diagnosis of hepatitis B infection is made by the observation of which of the following in the patient's body fluids? A) endospores B) Dane particles C) oocysts D) enterotoxins E) O antigens

B) Dane particles

A diagnosis of rabies is confirmed by... A) Gram stain B) Direct fluorescent-antibody test C) Patient's symptoms D) Passive agglutination E) Patient's death

B) Direct fluorescent-antibody test

Which one of the following causes the most severe illness in humans, with a mortality rate of 30%? A) Western equine encephalitis B) Eastern equine encephalitis C) St. Louis encephalitis D) California encephalitis E) West Nile encephalitis

B) Eastern equine encephalitis

A vaccine to provide active immunity to serum hepatitis is prepared from... A) Viruses grown in tissue culture B) Genetically modified yeast C) Pooled gamma globulin D) Viruses grown in embryonated eggs E) Viral particles in patients

B) Genetically modified yeast

Which of the following bacterial infections CANNOT be transmitted by dog or cat bites? A) Pasteurella multocida B) Streptobacillus C) Bacteroides D) Fusobacterium E) All of the above can be transmitted by dog or cat bites.

B) Streptobacillus

In adult patients, about 80% of the cases of bacterial meningitis are now caused by Neisseria meningitidis and... A) Haemophilus influenzae type B B) Streptococcus pneumoniae C) Listeria monocytogenes D) Clostridium tetani

B) Streptococcus pneumoniae

CH22#5 The most common route of central nervous system invasion by pathogens is through... A) The skin B) The circulatory system C) The gastrointestinal system D) The parenteral route E) Direct penetration into nerves

B) The circulatory system

The most common route of central nervous system invasion by pathogens is through A) The skin B) The circulatory system C) The gastrointestinal system D) The parenteral route E) Direct penetration into nerves

B) The circulatory system

Which of the following vaccines can cause the disease it is designed to prevent? A) Tetanus toxoid vaccine B) Oral polio vaccine C) Inactivated polio vaccine D) Haemophilus influenzae capsule vaccine E) Meningococcal capsule vaccine

B- Oral Polio Vaccine

CH22#1 Bacterial encephalitis and meningitis are difficult to treat because... A) No medications exist for treatment of these infections B) Antibiotics damage nervous tissue C) Many antibiotics cannot penetrate the blood-brain barrier D) The infections move along peripheral nerves E) It is very difficult to determine the causative microbe

C) Many antibiotics cannot penetrate the blood-brain barrier

Which of the following microbes has NOT been associated with bacterial meningitis? A) Neisseria meningitidis B) Haemophilus influenzae C) Mycobacterium leprae D) Streptococcus pneumoniae

C) Mycobacterium leprae

Infection by which of the following results in the formation of Ghon complexes? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Mycobacterium tuberculosis D) Streptococcus pyogenes E) Blastomyces dermatidis

C) Mycobacterium tuberculosis

Infection by which of the following is often confused with viral pneumonia? A) Blastomyces B) Coccidioides C) Mycoplasma D) Streptococcus E) None of the above

C) Mycoplasma

Which of the following is treated with antibiotics? A) Botulism B) Tetanus C) Streptococcal pneumonia D) Polio E) All of the above

C) Streptococcal pneumonia

Which of the following statements about group B streptococci is false? A) They are present in healthy carriers B) They cause gram-positive sepsis C) They cause strep throat D) They cause neonatal sepsis E) They are classified as Str. agalactiae

C) They cause strep throat

Patients with leprosy usually die from.. A) Brain damage B) Loss of nerve function C) Tuberculosis D) Influenza E) Leprosy

C) Tuberculosis

Which of the following CANNOT lead to an outbreak of botulism? A) Killing bacteria that compete with Clostridium B) An anaerobic environment C) An incubation period D) A nutrient medium with a pH below 4.5 E) Eating food from dented cans

D) A nutrient medium with a pH below 4.5

Which of the following etiologic agents results in the formation of abscesses? A) Staphylococcus B) Mycoplasma C) Streptococcus D) Blastomyces E) Coccidioides immitis

D) Blastomyces

Which of the following pairs does NOT apply to Chagas' disease? A) Causative agent - T. cruzi B) Vector - kissing bug C) Reservoir - rodents D) Diagnosis - serological tests for antibodies E) Treatment - Nifurtimox

D) Diagnosis - serological tests for antibodies

Which of the following statements about toxoplasmosis is false? A) It is caused by a protozoan B) The reservoir is cats C) It is transmitted by the gastrointestinal route D) It is a severe illness in adults E) It can be congenital

D) It is a severe illness in adults

Which of the following statements about schistosomiasis is false? A) The cercariae penetrate human skin B) A parasite of birds causes swimmer's itch in humans C) The intermediate host is an aquatic snail D) It is caused by a roundworm E) The female worm is attached to the male

D) It is caused by a roundworm

Which of the following statements about rheumatic fever is false? A) It is a complication of a group A beta-hemolytic streptococcal infection B) It is an inflammation of the heart C) It is an inflammation of the joints D) It is cured with penicillin E) The incidence has declined in the last 10 years

D) It is cured with penicillin

Which one of the following produces small "fried-egg" colonies on medium containing horse serum and yeast extract? A) Chlamydophila B) Legionella C) Mycobacterium D) Mycoplasma E) Streptococcus

D) Mycoplasma

Bioweapons... A) Are all respiratory pathogens B) Are not susceptible to antibiotics C) Are all viruses D) Are impossible to detect E) Have been used for centuries

E) Have been used for centuries

Which of the following organisms does NOT cause meningitis? A) Neisseria meningitidis B) Haemophilus influenzae C) Cryptococcus neoformans D) Streptococcus pneumoniae E) Mycobacterium leprae

E) Mycobacterium leprae

Microscopic examination of a lung biopsy shows thick-walled cysts. What is the etiology? A) Blastomyces B) Coccidioides C) Histoplasma D) Mycobacterium E) Pneumocystis

E) Pneumocystis

Which of the following is NOT caused by prions? A) Sheep scrapie B) Kuru C) Creutzfeldt-Jakob disease D) Elk chronic wasting disease E) Rabies

E) Rabies

Which of the following is NOT caused by a bacterium? A) Epidemic typhus B) Tickborne typhus C) Malaria D) Plague E) Relapsing fever

E) Relapsing fever

A patient who presents with red throat and tonsils can be diagnosed as having A) Streptococcal pharyngitis B) Scarlet fever C) Diphtheria D) Common cold E) There is insufficient information

E) There is insufficient information

All of the following are true of the common cold EXCEPT... A) complications include laryngitis and otitis media B) it is transmitted via aerosols and contact C) it is caused by rhinoviruses and coronaviruses D) the duration of symptoms is approximately one week E) early treatment will drastically reduce the disease symptoms

E) early treatment will drastically reduce the disease symptoms

Arboviruses cause ________ and are transmitted by ________. A) meningitis; mosquitoes B) encephalitis; exposure to certain trees C) both meningitis and encephalitis; mosquitoes D) meningitis; exposure to certain trees E) encephalitis; mosquitoes

E) encephalitis; mosquitoes

A physician diagnoses a patient with Lepromatous Hansens Disease. All of the following pertain to the patient EXCEPT... A) disfiguring nodules form all over the body B) the disease has progressed from the tuberculoid stage C) infection probably occurred as a result of prolonged contact with another infected individual D) a skin biopsy will be taken to aid diagnosis E) treatment will include injections of penicillin

E) treatment will include injections of penicillin.

A pathologist detects Negri bodies while examining a brain section taken at autopsy. What was the cause of death?

Rabies