Entomological Survey of Vectors of Scrub Typhus in Haulawng, Lunglei District, Mizoram, India

Lalthazuali; Abhay Kumar Sharma; TG Thomas; Sweta Bhan; Amarpal Singh Bhadauriya; Pankaj U Ramteke; Rina Kumawat; Ram Singh

Lalthazuali Centre for Medical Entomology & Vector Management, National Centre for Disease Control, 22-Sham Nath Marg, Delh, India. https://orcid.org/0000-0002-4656-0033
Abhay Kumar Sharma Centre for Medical Entomology & Vector Management, National Centre for Disease Control, 22-Sham Nath Marg, Delh, India.
TG Thomas Centre for Medical Entomology & Vector Management, National Centre for Disease Control, 22-Sham Nath Marg, Delh, India.
Sweta Bhan Centre for Medical Entomology & Vector Management, National Centre for Disease Control, 22-Sham Nath Marg, Delh, India.
Amarpal Singh Bhadauriya Centre for Medical Entomology & Vector Management, National Centre for Disease Control, 22-Sham Nath Marg, Delh, India.
Pankaj U Ramteke Centre for Medical Entomology & Vector Management, National Centre for Disease Control, 22-Sham Nath Marg, Delh, India.
Rina Kumawat Centre for Medical Entomology & Vector Management, National Centre for Disease Control, 22-Sham Nath Marg, Delh, India.
Ram Singh Centre for Medical Entomology & Vector Management, National Centre for Disease Control, 22-Sham Nath Marg, Delh, India.

Keywords: Scrub Typhus, Tromboculid mites ( Chigger), Transtadial and Transovarian Transmission, Re-emerging

Abstract

A study on the vector prevalence of Scrub typhus was undertaken in the Scrub typhus affected areas in Lunglei district, Mizoram. Rodents were trapped using live traps and examined for ectoparasites and serological test for scrub typhus antibodies was also done. Results on the vectors of the Scrub typhus revealed the presence of the vector mite Leptotrombidium deliense on the rats in 3 localities of Haulawng village. Chigger index was found to be 12.33, which is above the critical index of 0.69 per rodent. Chigger infestation rate was 18.5. The chigger infestation was found mainly on Rattus rattus. Detection of Orientia (Scrub typhus) 1:20 and 1:80 has been calculated by Weil Felix OXK antigen. Observation of the vector of Scrub typhus warrants regular surveillance in these areas to prevent any impending outbreak.

How to cite this article:
Lalthazuali, Sharma AK, Thomas TG, Bhan S, Bhadauriya AS, Ramteke PU. Entomological Survey of Vectors of Scrub Typhus in Haulawng, Lunglei District, Mizoram, India. J Commun Dis 2020; 52(2): 13-17.

DOI: https://doi.org/10.24321/0019.5138.202013

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