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define "permanent immunity"?

2007-05-03 14:17:22 · 1 answers · asked by Richard A 2 in Health ➔ Diseases & Conditions ➔ Infectious Diseases

1 answers

permanent immunity lasts longer , for years...memory cells- lymphocytes are responsible
however permanent immunity has it's ups and downs

2007-05-04 00:06:10 · answer #1 · answered by Srbo Sutaric 5 · 0⤊ 0⤋

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