21. Principles of Disease

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

Diseases or infections that can be transmitted from one individual 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 infection/disease). The infectious dose for Virus X is must lower than the infectious dose of Virus Y. Which virus is more virulent?