''Mycoplasma hyorhinis'' is a common [[Bacteria | bacterial]] '''commensal''' of pig’s respiratory tracts and an occasional cause of '''polyarthritis and polyserositis''' in young pigs. | ''Mycoplasma hyorhinis'' is a common [[Bacteria | bacterial]] '''commensal''' of pig’s respiratory tracts and an occasional cause of '''polyarthritis and polyserositis''' in young pigs. |