11/3/2023 0 Comments Mass effect 2 sensitivity![]() ![]() ![]() However, this TST may restore (or boost) immune memory and there may be a recall response on repeat testing resulting in a positive reaction. If the TST is administered to TB-infected individuals with faded immune memory, the reaction (induration) may be small or absent i.e., falsely negative. In most individuals infected with TB, tuberculin skin test (TST) sensitivity persists for many years after infection. However, over time in the absence of re-exposure to tuberculosis or to tuberculin, the size of the TST reaction may decrease or disappear because of waning immune memory.
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