Abstract
Twelve nasal swabs were collected from yearling horses with respiratory distress and tested for equid herpesvirus 1 (EHV-1) and equid herpesvirus 4 (EHV-4) by real-time PCR targeting the glycoprotein B gene. All samples were negative for EHV-1; however, 3 were positive for EHV-4. When these samples were tested for EHV-2 and EHV-5 by PCR, all samples were negative for EHV-2 and 11 were positive for EHV-5. All three samples that were positive for EHV-4 were also positive for EHV-5. These three samples gave a limited CPE in ED cells reminiscent of EHV-4 CPE. EHV-4 CPE was obvious after 3 days and was characterised by syncytia. None of the samples produced cytopathic effect (CPE) on African green monkey kidney (Vero) cells or hamster kidney (BSR) cells. Four of the samples, which were positive in the EHV-5 PCR, produced CPE on rabbit kidney (RK13) cells and equine dermis (ED) cells. EHV-5 CPE on both cell lines was slow and was apparent after four 7-day passages. On RK13 cells, the CPE was characteristic of equid herpesvirus, with the formation of syncytia. However, in ED cells, the CPE was characterised by ring-shaped syncytia. For the first time, a case of equine respiratory disease involving dual infection with EHV-4 and EHV-5 has been reported in Queensland (Australia). This was shown by simultaneously isolating EHV-4 and EHV-5 from clinical samples. EHV5 was recovered from all samples except one, suggesting that EHV5 was more prevalent in young horses than EHV2.
Similar content being viewed by others
References
Agius CT, Nagesha HS, Studdert MJ (1992) Equine herpesvirus 5: comparisons with EHV-2 (equine cytomegalovirus), cloning, and mapping of a new equine herpesvirus with a novel genome structure. Virology 191:176–186
Allen GP, Bryans JT (1986) Molecular epizootiology, pathogenesis and prophylaxis of equine herpesvirus 1 infections. Progr Vet Microbiol Immunol 2:78–144
Bagust TJ (1971) The equine herpesviruses. Vet Bull 41:79–82
Bagust TJ (1972) A review of viral infections in horses. Aust Vet J 48:520–523
Bagust TJ, Pascoe RR (1972) Studies on equine herpesviruses 3. The incidence in Queensland of three different equine herpesvirus infections. Aust Vet J 48:47–53
Banbura MW, Chmielewska A, Tucholska A, Sendecka H, Rzewuska M, Dzieciatkowski T (2004) Outbreak of equine herpesvirus type 2 (EHV–2) infections in relation to respiratory or neurological symptoms. Med Weter 60:496–499
Bell SA, Balasuriya UBR, Gardner IA, Barry PA, Wilson WD, Ferraro GL, MacLachlan NJ (2006) Temporal detection of equine herpesvirus infections of a cohort of mares and their foals. Vet Microbiol 116:249–257
Borchers K, Wolfinger U, Goltz M, Broll H, Ludwig H (1997) Distribution and relevance of equine herpesvirus 2 (EHV-2) infections. Arch Virol 142:917–928
Borchers K, Frölich K, Ludwig H (1999) Detection of equine herpesvirus types 2 and 5 (EHV-2 and EHV-5) in Przewalski’s wild horses. Arch Virol 144:771–780
Cai W, Gu B, Person S (1988) Role of glycoprotein B of herpes simplex virus type 1 in viral entry and cell fusion. J Virol 62:2596–2604
Campbell TM, Studdert MJ (1983) Equine herpesvirus type 1 (EHV-1). Vet Bull 53:135–146
Collinson PN (1994) Isolation of equine herpesvirus type 2 (equine gamma herpesvirus 2) from foals with keratoconjonctivitis. J Am Vet Med Assoc 205:329–331
Diallo IS, Hewitson G, Wright L, Rodwell BJ, Corney BG (2006) Detection of equine herpesvirus type 1 using a real-time polymerase chain reaction. J Virol Methods 131:92–98
Diallo IS, Hewitson G, Wright L, Rodwell BJ, Corney BG (2007) Multiplex real-time PCR for differentiation of Equid Herpesvirus type 1 and Equid Herpesvirus type 4. Vet Microbiol 123:93–103
Dunowska M, Meers J, Wilks CR (1999) Isolation of equine herpesvirus type 5 in New Zealand. NZ Vet J 47:44–46
Dunowska M, Wilks CR, Studdert MJ, Meers J (2002) Equine respiratory viruses in foals in New Zealand. N Z Vet J 50:140–147
Dutta SK, Myrup AC, Thaker SR (1986) In vitro interference between equine herpesvirus types 1 and 2. Am J Vet Res 47:747–750
Duxbury AE, Oxer DT (1968) Isolation of equine rhinopneumonitis from an epidemic of acute respiratory disease in horses. Aust Vet J 44:58–63
Dynon K, Black WD, Ficorelli N, Hartley CA, Studdert MJ (2007) Detection of viruses in nasal swabs samples from horses with acute, febrile, respiratory disease using virus isolation, polymerase chain reaction and serology. Aust Vet J 85:46–50
Fong CKY, Hsiung GD (1972) Development of an equine herpesvirus in two cell culture systems: light and electron microscopy. Infect Immun 6:865–876
Fortier G, Pitel PH, Maillard K, Pronost S (2003) Herpes virus en pathologie equine: connaissances actuelles et perspectives. Bull Acad Vet France 156:13–24
Fu ZF, Robinson AJ, Horner GW et al (1986) Respiratory disease in foals and epizootiology of equine herpesvirus type 2 infection. N Z Vet J 34:152–155
Harden TJ, Bagust TJ, Pascoe RR, Spradbrow PB. Studies on equine herpesviruses 5: (1974) Isolation and characterisation of slowly cytopathic equine herpesviruses in Queensland. Aust Vet J 50: 483–488
Hartley WJ, Dixon RJ (1979) An outbreak of foal perinatal mortality due to equine herpesvirus type1: pathological observations. Equine Vet J 11:215–218
Holloway SA, Lindquester GJ, Studdert MJ, Drummer HE (1999) Identification and characterisation of equine herpesvirus 5 glycoprotein B. Arch Virol 144:287–307
Hsiung GD, Fischman FR, Fong CKY, Green RH (1969) Characterisation of a cytomegalovirus-like virus isolated from spontaneously degenerated equine kidney culture. Proc Soc Exp Biol Med 130:80–84
Johnston KG, Hutchins DR (1967) Suspected adenovirus bronchitis in Arab foals. Aust Vet J 43:600
Jolly PD, Fu ZF, Robinson AJ (1986) Viruses associated with respiratory disease of horses in New Zealand. N Z Vet J 34:46–50
Kershaw O, von Oppen T, Glitz F, Deegen E, Ludwig H, Borchers K (2001) Detection of equine herpesvirus type 2 (EHV–2) in horses with keratoconjonctivitis. Virus Res 80:93–99
Murray MJ, Eichorn ES, Dubovi EJ, Ley WB, Cavey DM (1996) Equine herpesvirus type 2: prevalence and seroepidemiology in foals. Equine Vet J 28:432–436
Nordengrahn A, Rusvai M, Merza M, Ekstrom J, Morein B, Belák S (1996) Equine herpesvirus type 2 (EHV-2) as a predisposing factor for Rhodococcus equi pneumonia in foals: prevention of the bifactorial disease with EHV2 immunostimulating complexes. Vet Microbiol 51:55–68
Nordengrahn A, Merza M, Ros C, Lindholm A, Pálfi V, Hannant D, Belák S (2002) Prevalence of equine herpesvirus type 2 and 5 in horse populations by using type-specific PCR assays. Vet Res 33:251–259
O’Callaghan DJ, Gentry GA, Randall CC (1983) The equine herpesviruses. In: Roizman B (ed) The herpesviruses. Plenum Press, New York, pp 215–318
Purewal AS, Smallwood AV, Kaushal A, Adegboye D, Edington N (1992) Identification and control of the cis-acting elements of the immediate early gene of equid herpesvirus type 1. J Gen Virol 73:513–519
Reubel GH, Crabb BS, Studdert MJ (1995) Diagnosis of equine gammaherpesvirus 2 and 5 infections by polymerase chain reaction. Arch Virol 140:1049–1060
Sabine M, Feilen C, Herbert L, Jones RF, Lomas SW, Love DN, Wild J (1983) Equine herpesvirus abortion in Australia 1977 to 1982. Equine Vet J 15:366–370
Schlocker N, Gerber-Bretscher R, Fellenberg R (1995) Equine herpesvirus 2 in pulmonary macrophages of horses. Am J Vet Res 56:749–754
Studdert MJ, Turner AJ, Peterson JE (1970) Isolation and characterisation of equine rhinopneumonitis virus and other equine herpesviruses from horses. Aust Vet J 46:83–89
Studdert MJ (1974) Comparative aspects of equine herpesviruses. Cornell Vet 64:94–122
Studdert MJ (1996) Virus infections of equines. In: Studdert MJ (ed) Virus infections of vertebrates, 6th edn. Elsevier, Amsterdam, pp 47–60
Studdert MJ, Hartley CA, Dynon K, Sandy JR, Slocombe RF, Charles JA, Milne ME, Clarke AF, El-Hage C (2003) Outbreak of equine herpesvirus type 1 myeloencephalitis: new insights from virus identification by PCR and the application of an EHV-1-specific antibody detection ELISA. Vet Record 153:417–423
Szilagyi JF, Cunnigham C (1991) Identification and characterisation of a novel non-infectious herpes simplex virus-related particle. J Gen Virol 72:661–668
Telford EA, Studdert MJ, Agius CT, Watson MS, Aird HC, Davison AJ (1993) Equine herpesviruses 2 and 5 are gamma-herpesviruses. Virology 195: 492–499
Wang L, Raidal SL, Pizzirani A, Wilcox GE (2007) Detection of respiratory herpesvirus in foals and adult horses determined by nested multiplex PCR. Vet Microbiol 121:18–28
Welch HM, Bridges CG, Lyon AM, Griffiths L, Edington N (1992) Latent equid herpesvirus 1 and 4: detection and distinction using the polymerase chain reaction and co-cultivation from lymphoid tissues. J Gen Virol 73:261–268
Wilcox GE, Raidal S (2000) Role of viruses in respiratory disease. A Rural Industries Research and Development Corporation report
Wilks CR, Studdert MJ (1974) Equine herpesviruses. 5. Epizootiology of slowly cytopathic viruses in foals. Aust Vet J 50:438–442
Acknowledgments
The authors wish to thank Dr. C. Hartley (Centre for Equine Virology) for providing them with EHV-2, EHV-4 and EHV-5 reference strains. The authors would also like to thank Dr. T. Mahony, J. Taylor and N. Moody (DPI&F) for their critical comments on the manuscript.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Diallo, I.S., Hewitson, G.R., de Jong, A. et al. Equine herpesvirus infections in yearlings in South-East Queensland. Arch Virol 153, 1643–1649 (2008). https://doi.org/10.1007/s00705-008-0158-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00705-008-0158-y