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Year : 2019  |  Volume : 37  |  Issue : 3  |  Page : 438--441

Phylogenetic diversity of Orientia tsutsugamushi isolates in patients with scrub typhus in Bengaluru, India

Sneha K Chunchanur1, Shwetha J Venugopal1, R Ambica1, B Dakshayani2 
1 Department of Microbiology, Bangalore Medical College and Research Institute, Victoria Hospital, Bengaluru, Karnataka, India
2 Department of Paediatrics, Bangalore Medical College and Research Institute, Victoria Hospital, Bengaluru, Karnataka, India

Correspondence Address:
Dr. Sneha K Chunchanur
Department of Microbiology, Bangalore Medical College and Research Institute, Victoria Hospital, Fort, K. R. Road, Bengaluru - 560 002, Karnataka
India

Scrub typhus has re-emerged as an important cause of acute febrile illness in India. There is a dearth of information on strain diversity of Orientia tsutsugamushi from Karnataka, India, hence the present study sought to address this issue. One hundred clinically suspected cases of scrub typhus/rickettsiosis (as per the DHR-ICMR guidelines) were included. Nested-polymerase chain reaction (PCR) for 56-kDa gene and phylogenetic analysis was performed. PCR was positive in 22 cases and phylogenetic analysis showed the presence of different strains, with predominance of clustering (57%) with Gilliam-type for the first time in Karnataka. Knowledge of genetic diversity has implications in development of diagnostics and vaccine.

How to cite this article:
Chunchanur SK, Venugopal SJ, Ambica R, Dakshayani B. Phylogenetic diversity of Orientia tsutsugamushi isolates in patients with scrub typhus in Bengaluru, India.Indian J Med Microbiol 2019;37:438-441

How to cite this URL:
Chunchanur SK, Venugopal SJ, Ambica R, Dakshayani B. Phylogenetic diversity of Orientia tsutsugamushi isolates in patients with scrub typhus in Bengaluru, India. Indian J Med Microbiol [serial online] 2019 [cited 2020 Dec 2 ];37:438-441
Available from: https://www.ijmm.org/article.asp?issn=0255-0857;year=2019;volume=37;issue=3;spage=438;epage=441;aulast=Chunchanur;type=0