Figure 1From: Infrequent detection of Pneumocystis jirovecii by PCR in oral wash specimens from TB patients with or without HIV and healthy contacts in Tanzania Study recruitment and flow chart. PTB patients: 11 were excluded because betaglobin PCR was negative (7 HIV positive, 4 HIV negative) and 1 because HIV status was missing. Controls: 3 were excluded because betaglobin PCR was negative (1 household contact and 2 neighbourhood controls).Back to article page