The two Vs - vaccination and vigilance - seem to have collectively ensured the impact of the equine herpes virus (EHV) outbreak has been minimal.
Yesterday's news was taken as a big positive, with no new cases of horses showing symptoms or elevated temperatures being reported.
This strain of EHV is thought to vary slightly from the one the horses are actually immunised against, but the vaccination has still served to help reduce the symptoms suffered by horses to little more than a two or three-day cold.
Perhaps even more significantly, the horses' immune systems are then cleaning up the disease completely, leaving the hosts with no recognisable side effects and no apparent loss of racing performance.
Indeed, the Group One victory on Monday of one of the EHV outbreak's earliest victims, Joyful Winner, suggests owners need not fear the long-term repercussions of an infection being suffered by their equine pride and joy.
Infectious diseases are one of the potential problems for any large collection of racehorses in unnatural conditions. At its extreme, as Hong Kong discovered in 1992, it has the potential to shut down racing and put a lot of income streams in jeopardy.
