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Fig. 2 | BMC Infectious Diseases

Fig. 2

From: A high throughput serum bactericidal assay for antibodies to Haemophilus influenzae type b

Fig. 2

The numbers of colonies per spot obtained using a digital camera (Panel a) and a document scanner (Panel b) were compared with the true counts per spot (x-axis). The numbers of colonies were determined in 96 spots, and the true counts were established by manual counting. The lines indicate the best fit lines and their slopes were 0.84 and 0.89 for Panels a and b, respectively. The correlation coefficients (r) were 0.96 and 0.98 for Panels a and b, respectively. The coefficient was 0.99 for data points with less than 100 CFU/spot in both panels

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