Abstract
A silent cycle of equine herpesvirus 1 infection was described following epidemiological studies of unvaccinated mares and foals on a Hunter Valley stud farm. Following the introduction of routine vaccination with an inactivated whole virus equine herpesvirus 1 (EHV-1) and equine herpesvirus 4 (EHV-4) vaccine in 1997, a subsequent study identified excretion of EHV-1 and EHV-4 in nasal swab samples tested by PCR from vaccinated mares and their unweaned, unvaccinated foals. The current sero-epidemiological investigation of vaccinated mares and their young foals found serological evidence of EHV-1 and EHV-4 infection in mares and foals in the first 5 weeks of life. The results further support that EHV-1 and EHV-4 circulate in vaccinated populations of mares and their unweaned foals and confirms the continuation of the cycle of EHV-1 and EHV-4 infection.
Original language | English |
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Pages (from-to) | 41-46 |
Number of pages | 6 |
Journal | Veterinary Immunology and Immunopathology |
Volume | 111 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2006 |
Keywords
- horse
- equine herpesvirus 1
- EHV-1
- EHV-4
- vaccination
- ELISA antibody