Repeat testing with molecular WHO-recommended rapid diagnostic tests

In children with signs and symptoms of PTB in settings with a pre-test probability of 5% or higher (prevalence of confirmed TB of 5% or above in this specific population), repeat testing with Xpert MTB/RIF or Ultra may be considered after an initial negative Xpert MTB/RIF or Ultra test if the clinician has a high index of suspicion that the child has TB, using any of the recommended specimen types.

Box 4.5 WHO recommendations on repeat testing with Xpert MTB/RIF and Ultra

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