This skin breaks are though to be the result of eating course, tough forage briars. Signs of Soremouth A Soremouth infection normally runs its course in an individual in 1-4 weeks. Infections are seldom fatal. A recovered animal can be immune to this disease for as little as two months or as long as a year. Both sexes and all breeds of lambs are equally susceptible.
Most new cases occur in lambs less than one year of age.
Sites of infection are most commonly the lips or nose, but the udder, teats and junction of the hoof and lower legs may also be infected. These areas become blisters or pustules for a short period of time and may run together to produce larger areas of infection. Over a one week period of time, scabs form over infected areas. These scabs fall off after about 3 weeks, revealing rough reddened areas of granulation tissue. Once all scabs have fallen off, the infection is considered inactive.