TTR and atrophic rhinitis: While the absence of dermonecrotoxin gene toxA (as an essential factor in the pathogenesis of atrophic rhinitis in swine) and of the transferrin binding protein gene tbpA (which so far has been almost exclusively associated with ruminant P. multocida isolates) was not unexpected, the presence of the remaining VAGs in the wild chimpanzee isolates is comparable to that observed among respiratory tract isolates from domestic animals.