title: [The duration of the persistence of the plaque microbe in the body of the flea Citellophilus tesquorum altaicus].
abstract: Experiments have established that the plague bacillus persists long in the flea C. tesquorum altaicus in the Tuva natural foci. Experimentally, 64.2 to 77.3% of the fleas inoculated in autumn survived winter. More than one-half preserved the plague bacillus. From 0.7 to 19.4% of the inoculated fleas survived from one summer to another. The plague persisted in 30% of the insects. Individual C. tesquorum altaicus females survived two winters, preserving the bacillus for 21.5-22.0 months. The fact that the fleas has survived both one and two winter periods in coma transmitted the plague bacillus to healthy sousliks has been recorded. Rather late periods (278-411 days) of blocking the fleas after the insects' inoculating feeding have been defined.
authors.forename: L P
authors.initials: LP
authors.lastname: Bazanova
authors.forename: M P
authors.initials: MP
authors.lastname: Maevskiĭ
mesh_terms: D000818:Animals; D004197:Disease Reservoirs; D005260:Female; D007303:Insect Vectors / Q000382:microbiology*; D008297:Male; D012589:Sciuridae / Q000469:parasitology; D012621:Seasons; D012800:Siberia; D005423:Siphonaptera / Q000382:microbiology*; D013997:Time Factors; D015010:Yersinia pestis / Q000302:isolation & purification*
vernacular_title: Dlitel'nost' sokhraneniia chumnogo mikroba v organizme blokhi Citellophilus tesquorum altaicus.