Use of stool swabs in molecular transport media increases access to Xpert Ultra testing for TB in children.

Tertiary level hospital in Lusaka, Zambia. To measure concordance between Xpert MTB/RIF Ultra (Ultra) results of stool with and without transport media, and compare Ultra results from the two stool processing methods to Ultra and culture results using gastric aspirates (GA). This was a cross-sectional study collecting stool and GA from children 0-5 years presenting with signs and symptoms of TB.