Fig. 1
Sporozoite yields increase (a) non-linearly with (arithmetic) mean oocyst densities earlier in the infection (11–15 days post-blood meal), and (b) linearly over time (17–29 days post-blood meal) for mosquitoes infected with P. berghei strains PbANKA (circles) or PbGFP-LUCCON (triangles). Lines and shaded areas indicate the mean and uncertainty (95% CI), respectively, predicted by the minimal model (Table 1). Mean oocyst densities were derived from counts of individual midguts, irrespective of infection status (oocysts ≥ 0). Note that although sporozoite yields are expressed per mosquito, values do not represent a true mean as counts are from pooled salivary glands, with no information of densities contributed by individuals