Question 1. Injections of TC cells completely removed all Hepatitis B viruses from infected mice, but the injections killed only 5% of the infected liver cells. Explain how TC cells cured the mice.
Question 2. A patient with AIDS has a low TH cell count. Why does this patient have trouble making antibodies? How does this patient make any antibodies?
Question 3. Newborns (under 1 year) who contract dengue fever have a higher chance of dying from it if their mothers had dengue fever prior to pregnancy. Explain why.
Question 4. A woman died from a Capnocytophaga bacterial infection introduced by a dog bite. Capnocytophaga kills only people who lack a spleen. What is the relationship between infection and the spleen?