Epidemiological and Molecular Characterization of Echino-coccus granulosus Isolated from Small Ruminants in Kashmir Valley, India
-
Akeel Beigh
,
Mohmommad Darzi
,
Samina Bashir
,
Parvaiz Dar
,
Nazir Ganai
,
Suhail Malik
,
Basharat Bhat
Abstract
Background: Cystic Echinococcosis (CE) is an emergent or re-emergent zoonosis and remains a public health and economic problem all over the world.
Methods: The present study was carried on the prevalence and genotypes of Echinococcus present in small ruminants in Kashmir valley. A total of 2100, sheep (2052) and goats (48), slaughtered or spontaneously dead, from various areas of Kashmir valley were screened for the presence of hydatidosis. In case of goat none of the cases were found positive for hydatidosis, whereas, all the positive cases (85) were recorded in sheep only. The overall prevalence of hydatidosis was 4.04%. The prevalence was higher in female sheep (5.46%) compared to males (2.83%). Season-wise highest prevalence was in summer (4.55%), followed by autumn (4.1%), spring (3.89%) and winter (2.5%).The liver was observed to be the most frequently infected organ with relative prevalence of 61.17% followed by lungs (38.82%).The rDNA-ITS1 fragment of positive samples was amplified with BD1 / 4S primers.
Results: The length of amplified fragment for all isolated samples was 1000bps. The products obtained on PCR were digested with four restriction enzymes (Rsa 1, Alu 1, Msp 1 and Taq1). Rsa 1, Alu 1, Msp 1 yielded identical fragments, 300 and 700 bp in sheep. TaqI restriction enzyme had no effect on PCR product and after digestion; intact 1000bps fragment was seen.
Conclusion: Phylogenetic analysis of ITS1 gene revealed that the common sheep strain (G1) is the predominant genotype in sheep in Kashmir valley.
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| Issue | Vol 16 No 3 (2021) | |
| Section | Original Article(s) | |
| DOI | https://doi.org/10.18502/ijpa.v16i3.7088 | |
| Keywords | ||
| Cystic echinococcosis; Polymorphism; Restriction fragment length; Genotyping Sheep | ||
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