Turkey sinusitis: synergism between Mycoplasma synoviae and Mycoplasma meleagridis

Sinusitis was produced experimentally in turkeys after intrasinus inoculation with broth cultures of both Mycoplasma synoviae and Mycoplasma meleagridis. No evidence of sinusitis was observed in other turkeys exposed to each of these organisms separately- indicating pathogenic synergism with these mycoplasmas.