The hard tick Haemaphysalis longicomis is an exclusively hematophagous ectoparasites of mammals, which is regarded as one of vectors for disease spread. To study the effect of intestinal bacteria on the physiology of tick and transmission of pathogen by ticks, seven intestinal bacteria were isolated from tick H. longicornis. These bacteria were identified by 16S rDNA sequencing as fine genera, Caryophanon sp., Kocuria sp., Staphylococ...