Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan

Infectious keratoconjunctivitis (IKC) is a contagious eye disease primarily caused by Mycoplasma conjunctivae in domestic and wild Caprinae. Chlamydophila species have also been detected in ruminants with IKC. The objectives of this study are to investigate the ocular infection of M. conjunctivae an...

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Authors: Fernández Aguilar, Xavier|||0000-0002-4939-6048; Rossi, Luca|||0000-0001-6829-5229; Cabezón Ponsoda, Óscar|||0000-0001-7543-8371; Giorgino, Andrea; Victoriano Llopis, Isis; Frey, Joachim|||0000-0001-9133-0280; López Olvera, Jorge R.|||0000-0002-2999-3451
Format: Article
Publication date:2017
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:186303
Online Access:https://ddd.uab.cat/record/186303
https://dx.doi.org/urn:doi:10.1136/vr.103948
Access Level:Open access
Keyword:Chlamydophila pecorum
Coinfection
Goat
Infectious keratoconjunctivitis
Sheep
Wildlife livestock interface
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author Fernández Aguilar, Xavier|||0000-0002-4939-6048
author2 Rossi, Luca|||0000-0001-6829-5229
Cabezón Ponsoda, Óscar|||0000-0001-7543-8371
Giorgino, Andrea
Victoriano Llopis, Isis
Frey, Joachim|||0000-0001-9133-0280
López Olvera, Jorge R.|||0000-0002-2999-3451
author2_role author
author
author
author
author
author
author_browse Cabezón Ponsoda, Óscar|||0000-0001-7543-8371
Fernández Aguilar, Xavier|||0000-0002-4939-6048
Frey, Joachim|||0000-0001-9133-0280
Giorgino, Andrea
López Olvera, Jorge R.|||0000-0002-2999-3451
Rossi, Luca|||0000-0001-6829-5229
Victoriano Llopis, Isis
author_facet Fernández Aguilar, Xavier|||0000-0002-4939-6048
Rossi, Luca|||0000-0001-6829-5229
Cabezón Ponsoda, Óscar|||0000-0001-7543-8371
Giorgino, Andrea
Victoriano Llopis, Isis
Frey, Joachim|||0000-0001-9133-0280
López Olvera, Jorge R.|||0000-0002-2999-3451
author_role author
collection Dipòsit Digital de Documents de la UAB
description Infectious keratoconjunctivitis (IKC) is a contagious eye disease primarily caused by Mycoplasma conjunctivae in domestic and wild Caprinae. Chlamydophila species have also been detected in ruminants with IKC. The objectives of this study are to investigate the ocular infection of M. conjunctivae and Chlamydiaceae and assess its interaction in relation to IKC in sheep and goats from remote communities around the Central Karakoram National Park in Pakistan, performing a combination of cross-sectional and case-control study design. Mostly asymptomatic and endemic infections of M. conjunctivae and Chlamydiaceae were found in sheep (19.3 per cent and 4.5 per cent, respectively) and goats (9.5 per cent and 1.9 per cent, respectively) from all communities, assessed by qPCR. Prevalence significantly differed between species only for M. conjunctivae (P=0.0184), which was also more prevalent in younger sheep (P<0.01). Chlamydophila pecorum was identified by sequencing and was related with IKC only when coinfection with M. conjunctivae occurred, which suggest a synergic interaction. Cluster analysis of M. conjunctivae strains revealed higher diversity of strains than expected, evidenced interspecific transmission and suggested a higher local livestock trade than previously assumed. These results highlight the widespread occurrence of M conjunctivae in sheep worldwide and its implications for wildlife should be assessed from a conservation perspective.
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spelling Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan Fernández Aguilar, Xavier|||0000-0002-4939-6048 Rossi, Luca|||0000-0001-6829-5229 Cabezón Ponsoda, Óscar|||0000-0001-7543-8371 Giorgino, Andrea Victoriano Llopis, Isis Frey, Joachim|||0000-0001-9133-0280 López Olvera, Jorge R.|||0000-0002-2999-3451 Chlamydophila pecorum Coinfection Goat Infectious keratoconjunctivitis Sheep Wildlife livestock interface Infectious keratoconjunctivitis (IKC) is a contagious eye disease primarily caused by Mycoplasma conjunctivae in domestic and wild Caprinae. Chlamydophila species have also been detected in ruminants with IKC. The objectives of this study are to investigate the ocular infection of M. conjunctivae and Chlamydiaceae and assess its interaction in relation to IKC in sheep and goats from remote communities around the Central Karakoram National Park in Pakistan, performing a combination of cross-sectional and case-control study design. Mostly asymptomatic and endemic infections of M. conjunctivae and Chlamydiaceae were found in sheep (19.3 per cent and 4.5 per cent, respectively) and goats (9.5 per cent and 1.9 per cent, respectively) from all communities, assessed by qPCR. Prevalence significantly differed between species only for M. conjunctivae (P=0.0184), which was also more prevalent in younger sheep (P<0.01). Chlamydophila pecorum was identified by sequencing and was related with IKC only when coinfection with M. conjunctivae occurred, which suggest a synergic interaction. Cluster analysis of M. conjunctivae strains revealed higher diversity of strains than expected, evidenced interspecific transmission and suggested a higher local livestock trade than previously assumed. These results highlight the widespread occurrence of M conjunctivae in sheep worldwide and its implications for wildlife should be assessed from a conservation perspective. https://ddd.uab.cat/record/186303 https://dx.doi.org/urn:doi:10.1136/vr.103948
spellingShingle Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan
Fernández Aguilar, Xavier|||0000-0002-4939-6048
Chlamydophila pecorum
Coinfection
Goat
Infectious keratoconjunctivitis
Sheep
Wildlife livestock interface
title Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan
title_full Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan
title_fullStr Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan
title_full_unstemmed Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan
title_short Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan
title_sort Infectious keratoconjunctivitis and occurrence of Mycoplasma conjunctivae and Chlamydiaceae in small domestic ruminants from Central Karakoram, Pakistan
topic Chlamydophila pecorum
Coinfection
Goat
Infectious keratoconjunctivitis
Sheep
Wildlife livestock interface
topic_facet Chlamydophila pecorum
Coinfection
Goat
Infectious keratoconjunctivitis
Sheep
Wildlife livestock interface
url https://ddd.uab.cat/record/186303
https://dx.doi.org/urn:doi:10.1136/vr.103948