Figure 2From: Decreased Streptococcus pneumoniae susceptibility to oral antibiotics among children in rural Vietnam: a community study Distribution of estimated inhibitory zone diameter by disk diffusion. Figure 2 shows the distribution of estimated inhibitory zone diameter by disk diffusion for tetracycline (a), co-trimoxazole (b), erythoromycin (c) and ciprofloxacin (d) against 421 S. pneumoniae isolates.Back to article page