title: Some observations on factors associated with the development of Trypanosoma brucei brucei infections in Glossina morsitans morsitans.
abstract: The susceptibility of Glossina morsitans morsitans to Trypanosoma brucei brucei infection was shown to be age-dependent during the first 12 h: the youngest age group (1-8 h after emergence) being more susceptible than the older ones. The susceptibility was enhanced by cooling the young flies to a temperature of 0-5 degrees C for 30 min. Male flies were found to be more susceptible than females. The number of trypanosomes ingested did not influence the subsequent salivary-gland infection rates observed in G.m. morsitans; however, there was a relationship between the number ingested and subsequent T.b. brucei midgut infections in the flies.
mesh_terms: D000367:Age Factors; D000818:Animals; D005260:Female; D008297:Male; D011817:Rabbits; D051381:Rats; D011919:Rats, Inbred Strains; D012469:Salivary Glands / Q000469:parasitology; D012737:Sex Factors; D013696:Temperature; D014346:Trypanosoma brucei brucei / Q000502:physiology*; D014370:Tsetse Flies / Q000469:parasitology*