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

How does Rickettsia rickettsii damage blood vessels? (NCLEX/HESI/TEAS)

a. It blocks blood vessels and causes vessel inflammation.

b. It releases a toxin that destroys blood vessels.

c. It causes sepsis and septic shock, which damages blood vessels.

d. It avoids antibodies by binding to blood vessel surfaces.

e. It infects the epithelial cells of the vessels.

How does draining standing water reduce the incidence of malaria, dengue fever, yellow fever, Zika, and chikungunya?

Which Plasmodium life stage infects the liver?

a. Sporozoite

b. Merozoite

c. Gametocyte

d. Sexual stage

e. Vector stage

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

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?