Phylogenetic Analysis of Entomoparasitic Nematodes, Potential Control Agents of Flea Populations in Natural Foci of Plague

Table 1

Number of fleas studied and the percentage of fleas infected with nematodes.

Time of sampling	Host rodent species	Flea species	Number of collected fleas	Number of infected fleas	Percentage of infected fleas
April 2012	Citellus pygmaeus	Citellophilus tesquorum	41	7	17.1%
		Neopsylla setosa	73	5	6.8%
		Frontopsylla semura	54	7	13%
October 2012	Microtus socialis	Amphipsylla rossica	135	9	6.7%
		Ctenophthalmus secundus	88	1	1.1%
April 2013	Citellus pygmaeus	Citellophilus tesquorum	34	0	0
		Neopsylla setosa	271	22	8.1%
		Frontopsylla semura	19	4	21%
	Microtus socialis and Apodemus uralensis	Amphipsylla rossica	6	0	0
		Ctenophthalmus secundus	52	0	0
	Allactaga major	Mesopsylla hebes	34	2	5.9%