Select all the correct answers.
Adrian caught a virus while staying with his grandmother. A few years later, his mother and sister got the same virus. This virus could spread
through touch and direct contact. However, Adrian did not contract the virus this time, even though he was living with his mother and sister.
Why did he not get sick?
Adrian's adaptive immunity remembered the antigens from the virus and gave him lifelong
immunity to it.
Adrian's innate immunity remembered the antigens from the virus and gave him lifelong immunity
to it.
Adrian's skin layer recognized the antigens and attacked them, which prevented the occurrence of
the virus again.
Adrian's innate immunity identified antibodies specific for the virus and targeted them against the
antigen.
Adrian's adaptive immunity produced a higher amount of specific antibodies for the antigen,
preventing the virus.
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