Equine Influenza Infection

Longitudinal study describing the clinical signs observed in horses naturally infected with equine influenza

“…The clinical features of this EI infection differed from some of the previously published descriptions 2–6 . The classical clinical description of EI infection consists of a triad of pyrexia, nasal discharge and cough.…”

“…These data provide a detailed sequential record of the clinical signs following natural EI infection in an immunologically naïve horse population. Although these clinical signs of EI have been previously described, [4][5][6] this study provides a time line of the occurrence and frequency of the various clinical signs in this natural outbreak in naïve horses. A detailed description of these clinical signs associated with EI infection will be provided elsewhere.…”

“…The clinical features of this EI infection differed from some of the previously published descriptions. [2][3][4][5][6] The classical clinical description of EI infection consists of a triad of pyrexia, nasal discharge and cough. These signs were observed to varying degrees in the horses of the present study and it was noticed that all three clinical signs were not necessarily present in each of the infected horses.…”

Detection of clade 2 equine influenza virus in an adult horse recently imported to the USA

“…Care should be taken to ensure that affected horses have access to clean water and adequate quantities of palatable feed as infected horses have been shown to lose weight and body condition (Landolt et al . ). Providing stabling in areas with minimal dust and ammonia exposure tends to lessen airway irritation and decrease the likelihood of secondary bronchitis and pharyngitis which can limit athletic performance.…”

Equine influenza in Australia: a clinical overview

“…Typically, affected horses are febrile, display a harsh dry cough and develop a serous nasal discharge that becomes mucopurulent as a result of secondary bacterial infection. This classical triad of clinical features has been described as being sufficiently characteristic to permit tentative diagnosis 6–9 . The textbook descriptions of EI outbreaks refer to a relatively short incubation period, particularly during an outbreak, of between 1 and 3 days.…”