<i>Plasmodium</i> infection in mosquitoes inoculated with <i>D. immitis</i> mf immediately following blood feeding.

<p>Mosquitoes that fed on blood containing <i>P. gallinaceum</i> and received a saline inoculation immediately following blood feeding served as controls. There was no significant difference in <i>Plasmodium</i> development between mosquitoes that were exposed to <i>P. gallinaceum</i> and intrathoracic injection of saline (n = 38) or mosquitoes exposed to <i>P. gallinaceum</i> and intrathoracic injection of <i>D. immitis</i> mf (n = 21). The left panel indicates infection intensity where points indicate the absolute value of oocyst counts in individual mosquitoes, and horizontal black bars represent the mean intensity. The right panel indicates prevalence of infection where the bars represent the total population of mosquitoes examined. The filled portion of the bars indicates the proportion of mosquito midguts that were positive for at least one oocyst; the unfilled portion of the bar indicates the proportion of midguts that were uninfected. PG, <i>P. gallinaceum;</i> DI, <i>D. immitis.</i>