An adult patient with a military background is admitted with a rash, fever, altered sensorium, and a deficiency of the membrane attack complex. What is the most likely etiological agent?
AKlebsiella pneumoniae
BNeisseria meningitidis
CHaemophilus influenzae
DCMV
A researcher is studying the interactions between foreign antigens and human immune cells. She has isolated a line of lymphocytes that is known to bind antigen-presenting cells. From this cell line, she has isolated a cell surface protein that binds to class I major histocompatibility complex molecules. The continued activation, proliferation and survival of this specific cell line requires which of the following signaling molecules?
AInterleukin 1
BInterleukin 4
CInterleukin 2
DInterleukin 8
EInterleukin 6
Assertion: VZV vaccine is live attenuated. Reason: It cannot be given to immunocompromised patients.
ABoth true, reason doesn't explain assertion
BAssertion true, reason false
CAssertion false, reason true
DBoth true, reason explains assertion
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