Veterinary World

     Open access and peer reviewed journal  

ISSN (Online): 2231-0916

ISSN (Print): 0972-8988

 

Home l Editorial board l Instructions for authors l Reviewer guideline l Open access policy l Archives l FAQ


Open Access

Copyright: The authors. This article is an open access article licensed under the terms of the Creative Commons Attribution License

(http://creativecommons.org/licenses/by/2.0) which permits unrestricted use, distribution and reproduction in any medium, provided the work is properly cited.


Research (Published online: 05-10-2014)

1. Epidemiological study on human and canine leptospirosis in Central and North Kerala - Manju Soman, V. Jayaprakasan and M. Mini

Veterinary World, 7(10): 759-764

 

 

   doi: 10.14202/vetworld.2014.759-764

 

 

Manju Soman: Department of Veterinary Microbiology, College of Veterinary and Animal Sciences, Mannuthy, Thrissur, Kerala, India; manjuso1993@gmail.com

V. Jayaprakasan: Department of Veterinary Microbiology, College of Veterinary and Animal Sciences, Mannuthy, Thrissur, Kerala, India; jayaprakasanv@yahoo.com

M. Mini; Department of Veterinary Microbiology, College of Veterinary and Animal Sciences, Mannuthy, Thrissur, Kerala, India; drmmini@yahoo.co.in

 

Received: 23-06-2014, Revised: 29-08-2014, Accepted: 01-09-2014, Published online: 05-10-2014

 

Corresponding author: Manju Soman, e-mail: manjuso1993@gmail.com



Aim: The aim was to study the epidemiology of human and animal leptospirosis in Central and Northern Kerala, by isolation techniques and serology.

Materials and Methods: Kidney tissues from 35 rodents (11 bandicoots and 24 rats), autopsy specimens from two canines, blood from 15 canines and 30 human beings were subjected to isolation trials for Leptospira. Sera from these animals and human beings were screened for leptospiral antibodies by microscopic agglutination test (MAT).

Results: Leptospira could be isolated from human blood as well as from rodent kidney tissues. The MAT could detect the presence of leptospiral antibodies in 54.54% of human sera, 36.36% of dog sera and 21.42% of rodent sera. Pomona and Australis were the most predominant serovars detected in man, dog, and rodents. Tentative serotyping of the isolates by MAT revealed its identity as Leptospira interrogans serovar Pomona.

Conclusion: Detection of common serovars of Leptospira in man and animals by serology as well as isolation reiterates the major role played by animals in the epidemiology of human leptospirosis.

Keywords: canine, epidemiology, human, isolation, leptospirosis, microscopic agglutination test, rodent.



1. Antony, J., Celine, T.M. and Chacko, M. (2012) Case fatality rate of leptospirosis in a tertiary care hospital in Kerala, in India. Ann. Trop. Med. Public Health, 5(3): 236-239.
http://dx.doi.org/10.4103/1755-6783.98626
 
2. Parez, J., Brescia, F., Becam, J., Mauron, C. and Goarant, C. (2011) Rodent abundance dynamics and leptospirosis carriage in an area of hyper-endemicity in New Caledonia. PLoS. Negl. Trop. Dis., 5: 10.
 
3. Patil, D., Dahake, R., Roy, S., Mukherjee, S., Chowdhary, A., and Deshmukh, R. (2014) Prevalence of leptospirosis among dogs and rodents and their possible role in human leptospirosis from Mumbai, India. Indian J. Med. Microbiol., 32: 64.
http://dx.doi.org/10.4103/0255-0857.124319
PMid:24399392
 
4. Faine, S. (1982) Guidelines for the control of leptospirosis. Offset Publication No.67. World Health Organization, Geneva, Switzerland. p171.
 
5. Vanasco, N.B., Lottersberger, J., Sequeira, M.D. and Tarabla, H. (2001) Development and validation of an ELISA for the detection of leptospire-specific antibodies in rodent. Vet. Microbiol., 82: 321-330.
http://dx.doi.org/10.1016/S0378-1135(01)00394-7
 
6. Loffler, SG., Pavan, ME., Vanasco, B., Samartino, L., Suarez, O., Auteri, C., Romero, G., and Brihuega, B. (2014) Genotypes of pathogenic Leptospira spp isolated from rodents in Argentina. Mem. Inst. Oswaldo. Cruz., 109(2): 163-7.
http://dx.doi.org/10.1590/0074-0276140295
PMid:24676656 PMCid:PMC4015264
 
7. Scialfa, E., Bolpe, J., Bardón, JC., Ridao, G., Gentile, J. and Gallicchio, O. (2010) Isolation of Leptospira interrogans from suburban rats in Tandil, buenos aires, Argentina. Rev. Argent. Microbiol., 42(2): 126-8.
PMid:20589335
 
8. Pargaonker, V.N. (1957) Rats as carriers of Leptospira. Indian Vet. J., 34: 205-208.
 
9. Adinarayanan, N., and James, P.C. (1980) Studies on leptospirosis in farm stock and wildlife in Kerala. Indian Vet. J., 57: 496-500.
 
10. Venugopal, K., Ratnam, S. and Stallman, N.D. (1990) Isolation and identification of leptospires from a human case. Indian J. Comp. Microbiol. Immunol. Infect. Dis., 11: 99-100.
 
11. Bharadwaj, R., Bal, A.M., Joshi, S.A., Kagal, A., Pol, S.S., Garad, G., Arjunwadkar, V. and Katti, R. (2002). An outbreak of leptospirosis in Mumbai, India. Jpn. J. Infect. Dis., 55: 194-196.
PMid:12606828
 
12. Shotts, E.B., Andrews, C.L. and Harvey, T.W. (1975) Leptospirosis in selected wild mammals of the Florida pan handle and South Western Georgia. J. Am. Vet. Med. Assoc., 167: 587-589.
PMid:1176352
 
13. Thiermann, A.B. (1977) Incidence of leptospirosis in the detroit rat population. Am. J. Trop. Med. Hyg., 26: 970-973.
PMid:907056
 
14. Natarajaseenivasan, K. and Ratnam, S. (1997) Seroprevalence of leptospiral infection in an agricultural based village in Tamil Nadu. Cheiron., 26: 80-83.
 
15. Anderson, J.F., Miller, D.A., Post, J.E., Johnson, R.C., Magmarelli, L.A. and Andreadis, T.G. (1993) Isolation of Leptospira interrogans serovar Grippotyphosa from the skin of a dog. J. Am. Vet. Med. Assoc., 203: 1550-1551.
PMid:8288477
 
16. Vijayachari, P., Sugunan, A.P. and Sehgal, S.C. (2001) Evaluation of microscopic agglutination test as a diagnostic tool during acute stage of leptospirosis in high & low endemic areas. Indian J. Med. Res. 114: 99-106.
PMid:11873405
 
17. Arumugam, G, Jacob, S.M, Anitha, D. and Rajappa, S.M. (2011) Occurrence of leptospirosis among suspected cases in Chennai, Tamil Nadu. Indian J. Pathol. Microbiol., 54: 100-2.
http://dx.doi.org/10.4103/0377-4929.77340
PMid:21393887
 
18. Panwala, T., Mulla, S. and Patel, P. (2011) Seroprevalence of leptospirosis in South Gujarat region by evaluating the two rapid commercial diagnostic kits against the mat test for detection of antibodies to Leptospira interrogans. Natl. J. Community Med., 2(1): 64-70.