BackDuring an immune response, the latent or lag period is the number of days between the initial infection of the host and antibody production used to fight the infection. Which type of immune response will have the longer latent period?
Which antibody class rises to its highest concentration during a secondary response?
Does the graph correspond with a primary or secondary infection?
People that are immune to a certain disease have ________ class antibodies against the disease years later.
If you draw a blood sample from a patient to determine whether he or she has a herpes simplex infection, and the patient displays a large amount of IgG against the virus but low levels of IgM, what do you conclude?
Put the following steps in the correct sequence to elicit an antibody response:
(1) TH cell recognizes B cell.
(2) APC contacts antigen.
(3) Antigen fragment displayed on surface of APC.
(4) TH recognizes antigen on APC is immunogenic.
(5) B cell proliferates.
How long after initiation of a primary response do significant amounts of antibody appear in the blood?
Which of the following does not generate long-term immunological memory? Select all that apply.
a. Antivenom
b. Antitoxins
c. Vaccinations
d. Breast-feeding
e. Antigens
Which patient would be the most likely to benefit from desensitization immunotherapy?
a. A person suffering from serum sickness
b. A person at risk for HDN during pregnancy
c. A person with an allergy to pollen
d. A transplant patient
e. An asthmatic patient
What was the purpose of the practice of variolation?
____________ active immunity creates ____________ lymphocytes that will remember a pathogen and quickly respond to the same pathogen later when exposed.
Match each type of immunity in the numbered list with its associated example from the lettered list.
1. ___ Artificially acquired passive immunotherapy
2. ___ Naturally acquired active immunity
3. ___ Naturally acquired passive immunity
4. ___ Artificially acquired active immunity
A. Production of IgE in response to pollen
B. Acquisition of maternal antibodies in breast milk
C. Administration of tetanus toxoid
D. Administration of antitoxin
Explain how a pregnancy test works at the molecular level.