Isolation of two serotypes of equine adenovirus from horses in New Zealand.

This research paper is about two different types of adenoviruses that were identified in sickly young horses from a thoroughbred stud in New Zealand. A survey revealed that 39% of horses in the northern part of the North Island had antibodies against equine adenoviruses.

Study Subject and Methodology

• The research was carried out on ill-thrifty young horses from a thoroughbred stud in New Zealand.
• The researchers aimed to isolate and identify any adenoviruses present, given that these viruses are known to sometimes cause disease in horses.
• They studied the effects these viruses had on cells (cytopathic effects) and their properties related to how they cause red blood cells to clump together (haemagglutination).

Key Findings

• The researchers were successful in isolating two serologically unrelated adenoviruses from the horses.
• These two viruses differed in their cytopathic effects and haemagglutination properties, thus indicating that they were two different types (or serotypes) of adenoviruses.
• A serological survey was also conducted on horses in the northern half of New Zealand’s North Island, to investigate the prevalence of antibodies against equine adenoviruses in the horse population.
• The survey results showed that 39% of these horses had precipitating antibodies against equine adenoviruses, suggesting that these viruses are quite prevalent and that a significant proportion of horses have been exposed to them.

Significance of the Research

• The research is significant as it identifies two different types of adenoviruses in horses, enhancing knowledge about the diversity of these viruses.
• Understanding more about the prevalence and diversity of adenoviruses in horses can ultimately help in the development of better diagnostic tests and vaccines, and improve disease management strategies.