Fig 3. Clustering of household contacts with persistently negative latent Mycobacterial tuberculosis infection (pLTBI-) in 39 households stratified by high and low tuberculosis (TB) case exposure is the Fig 3 title.

Square represents pLTBI- household contacts with high exposure, referred to as resisters. Orange shaded squares represents household members who share the bed with culture-confirmed pulmonary TB case. Shaded circles represent the household contacts with positive LTBI and blue are smear positive TB cases.