Retrospective investigation of Echinococcus canadensis emergence in translocated elk (Cervus canadensis) in Tennessee, USA, and examination of canid definitive hosts
Background: Few reports of Echinococcus granulosus have been described in the Unites States; however, the geographical distribution of Echinococcus spp. in wild hosts is increasing consequent to human activities.
Methods:We investigated the prevalence of Echinococcus spp. in re-established elk ( Cervus canadensis ) populations in the North Cumberland Wildlife Management Area and the Great Smoky Mountains National Park via a retrospective analysis of banked elk tissues and an examination of intestinal contents from 11 coyotes ( Canis latrans ) from the North Cumberland Wildlife Management Area.
Results: Four elk were PCR and sequence positive for E. canadensis . Each sequence had 98% or greater coverage and identity to multiple E. canadensis genotypes in Genbank. Adult Echinococcus spp. were not detected in any of the coyotes examined in this study.
Conclusions: Continued surveillance of this disease in susceptible species in these areas is warranted, and these data further underscore the risk of zoonotic pathogen introduction secondary to wildlife translocation.
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Posted 11 Jun, 2020
On 30 Jun, 2020
On 06 Jun, 2020
On 05 Jun, 2020
On 05 Jun, 2020
On 04 Jun, 2020
On 28 May, 2020
On 27 May, 2020
On 27 May, 2020
Received 27 Apr, 2020
On 27 Apr, 2020
On 28 Feb, 2020
Received 15 Feb, 2020
Invitations sent on 01 Feb, 2020
On 01 Feb, 2020
On 29 Jan, 2020
On 29 Jan, 2020
On 28 Jan, 2020
On 28 Jan, 2020
Retrospective investigation of Echinococcus canadensis emergence in translocated elk (Cervus canadensis) in Tennessee, USA, and examination of canid definitive hosts
Posted 11 Jun, 2020
On 30 Jun, 2020
On 06 Jun, 2020
On 05 Jun, 2020
On 05 Jun, 2020
On 04 Jun, 2020
On 28 May, 2020
On 27 May, 2020
On 27 May, 2020
Received 27 Apr, 2020
On 27 Apr, 2020
On 28 Feb, 2020
Received 15 Feb, 2020
Invitations sent on 01 Feb, 2020
On 01 Feb, 2020
On 29 Jan, 2020
On 29 Jan, 2020
On 28 Jan, 2020
On 28 Jan, 2020
Background: Few reports of Echinococcus granulosus have been described in the Unites States; however, the geographical distribution of Echinococcus spp. in wild hosts is increasing consequent to human activities.
Methods:We investigated the prevalence of Echinococcus spp. in re-established elk ( Cervus canadensis ) populations in the North Cumberland Wildlife Management Area and the Great Smoky Mountains National Park via a retrospective analysis of banked elk tissues and an examination of intestinal contents from 11 coyotes ( Canis latrans ) from the North Cumberland Wildlife Management Area.
Results: Four elk were PCR and sequence positive for E. canadensis . Each sequence had 98% or greater coverage and identity to multiple E. canadensis genotypes in Genbank. Adult Echinococcus spp. were not detected in any of the coyotes examined in this study.
Conclusions: Continued surveillance of this disease in susceptible species in these areas is warranted, and these data further underscore the risk of zoonotic pathogen introduction secondary to wildlife translocation.
Figure 1
Figure 2
Figure 3