21. Principles of Disease

Use the following choices to answer questions 1 through 4:

a. ehrlichiosis

b. Lyme disease

c. septic shock

d. toxoplasmosis

e. viral hemorrhagic fever

A patient was hospitalized because of continuing fever and progression of symptoms including headache, fatigue, and back pain. Tests for antibodies to B. burgdorferi were negative. What is your diagnosis?

Which of the following would be considered a sign of a disease or infection?

Diseases or infections that can be transmitted from one individuals to another are categorized as what types of diseases?

Which of the following illnesses is an example of a noncommunicable disease?

Determine if the diseases below are communicable or noncommunicable diseases.

A. Communicable Disease. B.  Noncommunicable Disease.
_____ 1) Lung Cancer.            _____ 3) HIV.                         _____  5) Diabetes.
_____ 2) Measles.                   _____ 4) Stroke.                    _____ 6) Covid-19.

Pathogens that are very virulent are more likely to cause disease than pathogens that are less virulent (Virulence:the ability of a pathogen to cause and infection/disease). The infectious dose for Virus X is must lower than the infectious dose of Virus Y. Which virus is more virulent?

Opportunistic pathogens are least likely to infect which of the following groups of people?

Characteristics of a pathogen that promote pathogenicity are called:

Virulent pathogens are:

Which of the following pathogen characteristics may be considered virulence factor(s)?

An encapsulated bacterium can be a virulent pathogen because the capsule:

Which of the following is a true statement?

Differentiate the terms in each of the following pairs:

a. etiology and pathogenesis

b. infection and disease

c. communicable disease and noncommunicable disease

Among hospital patients who have infections, one-third did not enter the hospital with the infection but rather acquired it in the hospital. How do they acquire these infections? What is the method of transmission of these infections? What is the reservoir of infection?