Exam 2: Host-Parasite Interaction

A patient is brought to the emergency room with the following symptoms: body temperature of 102° F, low blood pressure, elevated WBC, and disseminated intravascular coagulation.This person has gram-negative rods growing in the blood.What is responsible for these symptoms?

The ability of an organism to produce disease in a susceptible individual is called:

The process that results in enhanced phagocytosis by neutrophils is:

The effects of endotoxins consist of dramatic changes in all the following except:

All the following activities must occur for phagocytosis to take place and be effective in host defense except:

Parasitism is a:

What are low-molecular-weight proteins secreted by T cells called?

Lysozyme is a(n):

What is the name of the bacterial state that occurs when a host harbors a disease-causing organism, but does not show signs of disease?

Immunity to intracellular bacterial pathogens, such as Mycobacterium tuberculosis, is primarily cell mediated, through the activities of:

The resulting disease from which route of transmission is a disease of animals that is transmitted to humans?

The smaller the number of microorganisms necessary to cause infection in a competent host, the more _____ the microorganism.

Which class of antibodies is usually found as a pentamer?

What is a form of food poisoning that can be life threatening even for otherwise healthy patients?

Healthy people are colonized by many different bacteria in many different sites.These bacteria are referred to as _____ flora.

A subsequent exposure to the same antigen elicits a(n) _____ immune response characterized by a rapid increase in IgG antibody associated with higher levels, a prolonged elevation, and a more gradual decline in antibody levels.

Innate immunity consists of which of the following components?

The most common bacterial characteristic that allows for evasion of phagocytosis by the host is called:

Pathogens can be transmitted through all the following routes except:

A laboratory professional is testing a new antimicrobial soap.The tech washes her forearm then does a culture of the skin.Which organisms should she most likely expect to find growing in the culture?