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Rehman ZU, Martin K, Zahid O, Ali Q, Rashid I, Hafeez MA, Ahmad N, Ashraf K, Betson M, Sargison ND, Chaudhry U. High-throughput sequencing of Fasciola spp. shows co-infection and intermediate forms in Balochistan, but only Fasciola gigantica in the Punjab province of Pakistan. Infect Genet Evol 2021; 94:105012. [PMID: 34302994 DOI: 10.1016/j.meegid.2021.105012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 10/20/2022]
Abstract
Fasciola gigantica and Fasciola hepatica are digenetic trematodes causing fasciolosis in ruminants. The host and geographical distribution of both Fasciola species are influenced by environmental and climatic conditions favouring survival and development of free-living stages and intermediate hosts, and livestock management practices. The aim of the present study was to describe the host distribution of the two Fasciola species in buffalo, cattle, goats, and sheep in the Balochistan and Punjab provinces of Pakistan. 359 flukes were collected from a total of 32 livers from the four livestock species. Deep amplicon sequencing of the internal transcribed spacer region 2 of ribosomal DNA (rDNA ITS-2) and mitochondrial nicotinamide adenine dinucleotide dehydrogenase 1 (mtDNA ND-1) loci confirmed co-infection of F. hepatica and F. gigantica in Balochistan and single species F. gigantica infection in Punjab. In Balochistan, co-infections and hybrids of both Fasciola species were identified in cattle, with more F. hepatica detected than F. gigantica. However, F. hepatica was the only species identified in goats, and F. gigantica was the only species identified in buffalo. In Punjab, all flukes were confirmed as F. gigantica in each of the four livestock species. Overall, the results indicate differences in the host and geographical distribution of F. gigantica and F. hepatica, and provide useful knowledge for the development of control strategies for livestock and humans.
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Affiliation(s)
- Zia Ur Rehman
- Department of Parasitology, University of Veterinary and Animal Sciences Lahore, Punjab, Pakistan
| | - Kirsty Martin
- University of Edinburgh, Royal (Dick) School of Veterinary Studies and Roslin Institute, Easter Bush Veterinary Centre, Midlothian, Scotland, UK
| | - Osama Zahid
- University of Edinburgh, Royal (Dick) School of Veterinary Studies and Roslin Institute, Easter Bush Veterinary Centre, Midlothian, Scotland, UK
| | - Qasim Ali
- Department of Parasitology, Gomal University Dera Ismail Khan, Khyber Pakhtoon Khah, Pakistan
| | - Imran Rashid
- Department of Parasitology, University of Veterinary and Animal Sciences Lahore, Punjab, Pakistan.
| | - Mian Abdul Hafeez
- Department of Parasitology, University of Veterinary and Animal Sciences Lahore, Punjab, Pakistan
| | - Nisar Ahmad
- Department of Parasitology, University of Veterinary and Animal Sciences Lahore, Punjab, Pakistan
| | - Kamran Ashraf
- Department of Parasitology, University of Veterinary and Animal Sciences Lahore, Punjab, Pakistan
| | - Martha Betson
- Department of Parasitology, University of Veterinary and Animal Sciences Lahore, Punjab, Pakistan
| | - Neil D Sargison
- University of Edinburgh, Royal (Dick) School of Veterinary Studies and Roslin Institute, Easter Bush Veterinary Centre, Midlothian, Scotland, UK
| | - Umer Chaudhry
- Department of Parasitology, University of Veterinary and Animal Sciences Lahore, Punjab, Pakistan; Department of Veterinary Epidemiology and Public Health, School of Veterinary Medicine, University of Surrey, UK.
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