Question 1

Septic shock symptoms

Accepted Answer

A) Are caused by endotoxin of Gram-negative bacteria 
B) Are caused by peptidoglycan of Gram-positive 
C) Include low blood pressure 
D) Include decreased urination 
E) All the choices are involved 
A) Are caused by endotoxin of Gram-negative bacteria 
B) Are caused by peptidoglycan of Gram-positive 
C) Include low blood pressure 
D) Include decreased urination 
E) All the choices are involved E

Question 2

Name three different ticks in the United States known to harbor Rickettsia rickettsii.Explain how R.rickettsii are able to continue their propagation in ticks without adverse effects to their life cycle or survival.

Accepted Answer

Rickettsia rickettsia,the causative agent of Rocky Mountain spotted fever,is harbored by the wood tick Dermacentor andersoni in the western United States,the dog tick Dermacentor variabilis in the eastern United States,and the lone star tick Amblyomma americanum in the southwest and midwest United States.R.rickettsii does not adversely affect the tick vector that is responsible for human transmission,but lives in the endolymph as is passed from one generation to the next.

Question 3

All of the following describe Rickettsia except

Accepted Answer

A) Animal reservoirs 
B) Obligate intracellular parasite 
C) Arthropod vector transmission 
D) Use of actin polymerization to move through and between host cells 
E) Gram-positive coccobacillus 
A) Animal reservoirs 
B) Obligate intracellular parasite 
C) Arthropod vector transmission 
D) Use of actin polymerization to move through and between host cells 
E) Gram-positive coccobacillus E

Question 4

What are the most common complications of infectious endocarditis? Identify the four most common bacterial sources of infectious endocarditis.

Accepted Answer

Complications from infectious endocardit

Question 5

Chagas' disease is transmitted by

Accepted Answer

A) Reduviids 
B) Fleas 
C) Ticks 
D) Mosquitoes 
E) Lice 
A) Reduviids 
B) Fleas 
C) Ticks 
D) Mosquitoes 
E) Lice

Question 6

Primary infection of endemic typhus is from

Accepted Answer

A) Human to rodent 
B) Human to human 
C) Rodent to human 
D) Rodent to rodent 
A) Human to rodent 
B) Human to human 
C) Rodent to human 
D) Rodent to rodent

Question 7

The movement of bacteria from _____ is the most common route linked to extravascular infections.

Accepted Answer

A) Bloodstream → lymphatics →  tissues 
B) Tissues → lymphatics → bloodstream 
C) Lymphatics → tissue → bloodstream 
D) Tissues → bloodstream →  lymphatics 
A) Bloodstream → lymphatics →  tissues 
B) Tissues → lymphatics → bloodstream 
C) Lymphatics → tissue → bloodstream 
D) Tissues → bloodstream →  lymphatics

Question 8

Compare the Ebola and Marburg infections.A vaccine is available for

Accepted Answer

A) Ebola 
B) Marburg 
C) Both Ebola and Marburg 
D) Neither Ebola or Marburg 
A) Ebola 
B) Marburg 
C) Both Ebola and Marburg 
D) Neither Ebola or Marburg

Question 9

The most common vector for transmission of arboviruses is the

Accepted Answer

A) Louse 
B) Tick 
C) Mosquito 
D) Flea 
E) Sand-fly 
A) Louse 
B) Tick 
C) Mosquito 
D) Flea 
E) Sand-fly

Question 10

Answer true or false to the reason given in the following statement: The deer host is essential to the existence of Lyme disease because this is transmitted by mosquitoes which feed on deer blood.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following statements about filariasis is false?

Accepted Answer

A) Filariasis is caused by threadlike nematodes 
B) Microfilariae move between the systemic circulation during the day to the pulmonary circulation during the night 
C) Humans are the only host for the causative agents of filariasis 
D) Recurrent filariasis may lead to elephantiasis 
E) There are no known treatments for filariasis 
A) Filariasis is caused by threadlike nematodes 
B) Microfilariae move between the systemic circulation during the day to the pulmonary circulation during the night 
C) Humans are the only host for the causative agents of filariasis 
D) Recurrent filariasis may lead to elephantiasis 
E) There are no known treatments for filariasis

Question 12

Arbovirus infections present with all the following symptoms except

Accepted Answer

A) Cellular necrosis 
B) Encephalitis 
C) Hemolytic anemia 
D) Fever 
E) Inflammation 
A) Cellular necrosis 
B) Encephalitis 
C) Hemolytic anemia 
D) Fever 
E) Inflammation

Question 13

All of the following are true about Epstein-Barr virus except

Accepted Answer

A) Has the largest viral genome 
B) Enters B lymphocytes 
C) Causes infectious mononucleosis 
D) EBNAs are expressed by infected B cells 
E) It is human herpesvirus 4 
A) Has the largest viral genome 
B) Enters B lymphocytes 
C) Causes infectious mononucleosis 
D) EBNAs are expressed by infected B cells 
E) It is human herpesvirus 4

Question 14

Answer true or false to the reason given in the following statement: Because the ID50 for tularemia is large there are many routes to tularemia infection.

Accepted Answer

A) True 
 B)False

Question 15

Answer true or false to the reason given in the following statement: Yellow fever is a potential threat to the southeastern United States because the vector for this virus has migrated to this area.

Accepted Answer

A) True 
 B)False

Question 16

Chagas' disease is caused by

Accepted Answer

A) Toxoplasma gondii 
B) Trypanosoma brucei 
C) Trypanosoma cruzi 
D) Wuchereria bancrofti 
E) Brugia malayi 
A) Toxoplasma gondii 
B) Trypanosoma brucei 
C) Trypanosoma cruzi 
D) Wuchereria bancrofti 
E) Brugia malayi

Question 17

Answer true or false to the reason given in the following statement: The reduviid is referred to as the kissing bug because it spreads Chagas' disease by kissing.

Accepted Answer

A) True 
 B)False

Question 18

Answer true or false to the reason given in the following statement: The cycle is different for the louse-borne form of relapsing fever because lice have only human hosts.

Accepted Answer

A) True 
 B)False

Question 19

The louse-borne form of relapsing fever is not

Accepted Answer

A) Caused by Brucella spp. 
B) Commonly associated with up to ten relapses 
C) Treated successfully with doxycycline or erythromycin 
D) Usually seen in epidemics, whereas the tick-borne form is not 
A) Caused by Brucella spp. 
B) Commonly associated with up to ten relapses 
C) Treated successfully with doxycycline or erythromycin 
D) Usually seen in epidemics, whereas the tick-borne form is not

Question 20

Discuss three conditions that facilitate the accumulation of pathogens on heart valves during infectious endocarditis.

Accepted Answer

Alteration of heart valve endothelium by

Exam 25: Infections of the Blood and Lymph

Septic shock symptoms

Name three different ticks in the United States known to harbor Rickettsia rickettsii.Explain how R.rickettsii are able to continue their propagation in ticks without adverse effects to their life cycle or survival.

All of the following describe Rickettsia except

What are the most common complications of infectious endocarditis? Identify the four most common bacterial sources of infectious endocarditis.

Chagas' disease is transmitted by

Primary infection of endemic typhus is from

The movement of bacteria from _____ is the most common route linked to extravascular infections.

Compare the Ebola and Marburg infections.A vaccine is available for

The most common vector for transmission of arboviruses is the

Answer true or false to the reason given in the following statement: The deer host is essential to the existence of Lyme disease because this is transmitted by mosquitoes which feed on deer blood.

Which of the following statements about filariasis is false?

Arbovirus infections present with all the following symptoms except

All of the following are true about Epstein-Barr virus except

Answer true or false to the reason given in the following statement: Because the ID50 for tularemia is large there are many routes to tularemia infection.

Answer true or false to the reason given in the following statement: Yellow fever is a potential threat to the southeastern United States because the vector for this virus has migrated to this area.

Chagas' disease is caused by

Answer true or false to the reason given in the following statement: The reduviid is referred to as the kissing bug because it spreads Chagas' disease by kissing.

Answer true or false to the reason given in the following statement: The cycle is different for the louse-borne form of relapsing fever because lice have only human hosts.

The louse-borne form of relapsing fever is not

Discuss three conditions that facilitate the accumulation of pathogens on heart valves during infectious endocarditis.

What is Microbiology and Why Does it Matter?

Fundamental Chemistry for Microbiology

Essentials of Metabolism

An Introduction to Cell Structure and Host-Pathogen Relationships

Requirements for Infection

Transmission of Infection, the Compromised Host, Epidemiology, and Diagnosing Infections

Principles of Disease

Emerging and Re-Emerging Infectious Disease

The Clinical Significance of Bacterial Anatomy

Bacterial Growth

Microbial Genetics and Infectious Disease

The Structure and Infection Cycle of Viruses

Viral Infection

Parasitic and Fungal Infections

The Innate Immune Response

The Adaptive Immune Response

Failures of the Immune Response

Control of Microbial Growth with Disinfectants and Antiseptics

Antibiotics and Antimicrobial Drugs

Antibiotic Resistance

Infections of the Respiratory System

Infections of the Digestive System

Infections of the Genitourinary System

Infections of the Central Nervous System

Infections of the Skin and Eyes

Filters

Answer true or false to the reason given in the following statement: Because the ID₅₀ for tularemia is large there are many routes to tularemia infection.