Are allergies part of the innate immune system?
Q. I have a question about this exam question:
Which of the following is an example of innate immunity? (more…)
Why don’t you get sensitized with a PPD?
Q. I had a question about PPD (Mantoux test). I read your hypersensitivity posts explaining the different types and examples of hypersensitivity. (more…)
Henoch-Schonlein purpura: the disease you never really learned about
Sometimes in pathology, you hear the name of a disease over and over, but somehow you never really learn about it. (more…)
Forward blood typing
Q. I have a question about blood typing. I understand that in forward typing, we use anti-A and anti-B antibodies. (more…)
Immunology quiz answers
First, a short question on IgA:
Q. I heard in lecture that IgA is bactericidal. How does that work, if IgA doesn’t bind to complement and does not have an available Fc receptor? (more…)
Immunology quiz
Here’s a little immunology quiz to test your knowledge. Answers are here. (more…)
Antibody isotypes, idiotypes, and allotypes
Q. We’re doing immunology right now and I don’t get what the difference is between isotypes and idiotypes. Are they the same thing? (more…)
Ode to the granuloma
The first thing I think of when I hear “granuloma” is the Knack song My Sharona. (more…)
What goes on inside a caseating granuloma?
Q. Are the caseating granulomas seen in tuberculosis considered part of innate or adaptive immunity? What’s happening inside them?
Are all autoimmune diseases caused by hypersensitivity reactions?
From time to time, I get questions regarding the connection between hypersensitivity reactions and autoimmune diseases. (more…)
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