Fig. 1
From: Estimated burden of group a streptococcal pharyngitis among children in Beijing, China
Model parameters for estimating the burden of GAS pharyngitis in Beijing, 2012–2014. Note: A, Total no. cases of GAS culture-positive pharyngitis in Beijing; B, Cases refer to hospitals in Beijing = A* Consultation rate; C, Cases refer to sentinel hospitals of GAS surveillances in Beijing = B*Population coverage of GAS surveillances in Beijing; D, Cases for which specimens were successfully collected = C*Sampling success rate; E, Predicted positive specimens that were correctly identified by laboratory tests = D*Test sensitivity