[Further comment on the role of sugars for the successful infection of blood-sucking Diptera by protozoa that are the causative agents of human diseases].

Possible reasons of a successful development of Plasmodium gallinaceum in Aedes aegypti, which were not given sugar feeding, are analysed. Such reasons are assumed to be high contents of sugars (up to 200 mg/% in the blood of chickens-donors) and retention of sugar in the crop of mosquitoes, which were fed from a tampon, in control.