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Alaska Tuberculosis Program Manual - Epidemiology - State of Alaska

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For young infants, some experts recommend that window period prophylaxis be continued until<br />

1 year <strong>of</strong> age, by which time the child should have sufficient immune function to produce a<br />

positive (>5 mm) TST reaction if the child has been infected. Others recommend stopping<br />

treatment if the infant is 6 months or older and has a negative follow-up tuberculin skin test<br />

If the second test is negative but the contact is immunocompromised (e.g., with human<br />

immunodeficiency virus [HIV] infection), a full course <strong>of</strong> therapy for LTBI should be completed. 30<br />

If the second test is positive (5mm or greater induration), a full course <strong>of</strong> therapy for LTBI should<br />

be completed.<br />

Infants and children on window period prophylaxis should be closely monitored for signs and<br />

symptoms <strong>of</strong> active TB disease.<br />

Immunocompromised contacts to an infectious TB case, such as HIVinfected<br />

contacts, should be given full treatment for LTBI regardless <strong>of</strong> the<br />

TST reaction. 31<br />

A L A S K A T U B E R C U L O S I S P R O G R A M M A N U A L Diagnosis and Treatment <strong>of</strong> LTBI and TB Disease in Children 9.19<br />

R e v i s e d N o v e m b e r 2 0 1 2

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