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The body uses specific methods to address pathogens that are causing illness. if a person has memory b cells against a certain pathogen, what will happen if that pathogen infects the person's body again?

Athey are likely to develop that disease.
Bthey are much less likely to develop the disease a second time.
Cthey are able to spread the disease to others through physical contact.
Dthey are probably still sick with the disease.

Verified Answer :

CJmad8

They are much less likely to develop the disease a second time.

Memory B cells help your body prevent getting sick a second time once you get sick the first time. So for instance it may take about 15-16 days for your memory B cells to produce enough antibodies against this certain pathogen the first time, however once you get sick with the same thing the second time, these memory B cells will kick in and will take less time to fight off the pathogens in like 5 days. :)

Lymphatics and immune system is very important to study :) hah

Good luck and I hope this has helped you! :D