centrejonathan davies will captain the side for the first time, with alun wynjones on the bench, anday after three vaccinated horses tested positive for the disease. humans can't be infected but how dangerous is it for animals? let's speak to jess wray, who's an equine vet. good morning. so much in the news about this. how serious and affection is this? it is an infection endemic to the uk. it is a lwa ys infection endemic to the uk. it is always there. particularly serious in unvaccinated horses, they can chose severe signs of disease. the nature of influenza as a virus is it is always changing, same with what we have as flu anyway. so the vaccination does lessen the signs that we see, if they spread the virus, it is not for as long. it is the unvaccinated ones that need to... the unvaccinated ones that need to. . . these the unvaccinated ones that need to... these sources were all vaccinated. in terms of recovery as athletes, that can take a long time. it can do, definitely, yes. they can show signs for a couple of days or so, but in terms of what happens after that they can be sev