You had a cold last month and you caught another one this month from your daughter. What is the most likely cause of this?
A) Memory cells were not formed as a response to the first cold.
B) The antibodies formed as a response to the first cold were degraded.
C) The two cold viruses are significantly different.
D) Your T cells are not working properly.
E) Your antigen-presenting cells do not recognize the second cold virus.

Question

Quizplus · Accepted Answer

The most likely cause is that the two cold viruses are significantly different. The common cold can be caused by many different types of viruses, and being infected with one type does not necessarily provide immunity against others.

You Had a Cold Last Month and You Caught Another