What is one method of EHV transmission?

One method of EHV (Equine Herpesvirus) transmission is through aerosolized particles that are expelled when an infected horse coughs. Respiratory viruses often spread via droplets, and since EHV mainly affects the respiratory system, the virus can be present in the nasal secretions of an infected horse. When the horse coughs, these droplets can become aerosolized and be inhaled by other horses nearby, facilitating the spread of the virus in close quarters, such as stables or at horse shows. This highlights the importance of biosecurity measures in preventing outbreaks, particularly in environments where many horses congregate.

The other methods mentioned, such as direct contact with inanimate objects or ingestion of contaminated water, are less relevant for EHV transmission. EHV is typically not transmitted via surfaces or non-living objects in significant amounts, nor is it primarily spread by ingestion, which makes the aerosol route the most pertinent and common method of transmission in equine populations.