Two Anaplasma phagocytophilum strains in Ixodes scapularis ticks, Canada.

Publication type: 
Journal Article
Publication date: 
2014-12
Journal/Series title: 
Emerg Infect Dis.
Volume: 
20
Issue: 
12
Abstract: 

We developed PCR-based assays to distinguish a human pathogenic strain of Anaplasma phagocytophilum, Ap-ha, from Ap-variant 1, a strain not associated with human infection. The assays were validated on A. phagocytophilum-infected black-legged ticks (Ixodes scapularis) collected in Canada. The relative prevalence of these 2 strains in I. scapularis ticks differed among geographic regions.