Environmental stressors may cause equine herpesvirus reactivation in captive Grévy's zebras (Equus grevyi )

PeerJ
P A SeeberM Franz

Abstract

Equine Herpesviruses (EHV) are common and often latent pathogens of equids which can cause fatalities when transmitted to non-equids. Stress and elevated glucocorticoids have been associated with EHV reactivation in domestic horses, but little is known about the correlation between stress and viral reactivation in wild equids. We investigated the effect of an environmental stressor (social group restructuring following a translocation event) on EHV reactivation in captive Grévy's zebras (Equus grevyi). A mare was translocated by road transport from Zoo Mulhouse, France, to join a resident group of three mares in Tierpark Berlin, Germany. We used an indirect sampling method to assess the frequency of EHV shedding for 14 days immediately after the translocation event (termed the 'experimental period'). The results were compared with those from two control periods, one preceding and one subsequent to the experimental period. In addition, we measured fecal glucocorticoid metabolite (fGCM) concentrations daily in all individuals from 6 days before, to 14 days after translocation. We found significantly higher EHV shedding frequencies during the experimental period, compared to each of the two control periods. All animals showed sign...Continue Reading

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Citations

Nov 18, 2018·Applied and Environmental Microbiology·Peter A SeeberAlex D Greenwood
Sep 17, 2020·Proceedings. Biological Sciences·Daniel J BeckerRichard J Hall
Oct 8, 2020·Animals : an Open Access Journal From MDPI·Erin L GoodrichCassandra Guarino
Feb 16, 2021·The Science of the Total Environment·Anisha DayaramAlex D Greenwood
May 1, 2021·Pathogens·Anisha DayaramAlex D Greenwood
Jun 17, 2021·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Antoine LeclercLoïc Legrand
Jul 18, 2021·Hormones and Behavior·Carolyn M Bauer, Heather E Watts
Aug 24, 2021·Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere·Wolfgang Sipos, Christiane Lutonsky

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Methods Mentioned

BETA
PCR

Software Mentioned

Geneious
glmmADMB
R
R Development Core Team
PhyML
BLAST

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