| DIAGNOSTIC TESTING |
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| n | Serologic test
for heterophil antibodies |
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| n | Percentage with
antibodies higher > |
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| 4yrs old |
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| n | % of persons who
are + at 1 week |
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| varies with test
(1 study - 69% + at 1 |
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| wk; 80% + by 3
wks) |
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| n | False +s rare |
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