In opsonization with IgG, why would it be important that IgG react with the antigen BEFORE a phagocytic cell recognizes the antibody molecule?

The two columns on the left show negative and positive immunoblot results for a particular pathogen. The numbered columns are blots of samples from 11 patients. Which patients are most likely uninfected?

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Compare and contrast the Chinese practice of variolation with Jenner’s vaccination procedure.

How are T cell receptors similar in function to B cell receptors?

Which of the following is not typical of an immunogenic antigen?

Why would a person who has their tonsils removed be more susceptible to certain types of infections of the 

throat and respiratory tract?

Indicate the true statements and correct the false statements so they are true.

a. B cells are activated by antigen-presenting cells

b. T cytotoxic cells are activated by antigens bound to MHC I

c. Upon activation, T helper cells stimulate T cytotoxic cells and B cells

d. IgG is the first antibody made during a primary response

e. T-dependent antigens rely on TH cells to activate B cells

Select all the false statements about artificially acquired immunity.

a. It can be passive

b. It can be active

c. It may be generated by vaccines

d. It is a form of autoimmunity

e. It may generate memory cells

f. An example includes the transfer of antibodies across the placenta

Which of the following is the most suggestive of an anaphylactic reaction? (NCLEX/HESI/TEAS)

a. Sudden fever

b. A localized rash

c. Nasal congestion

d. Hemorrhage

e. Respiratory distress