CONTAGIOUS BOVINE PLEUROPNEUMONIA (CBPP)

Mycoplasma mycoides subspecies mycoides SC (bovine biotype). subacute or symptomless infections persistence of chronic carriers after the clinical phase incubation period: 6 months

Diagnosis: clinical signs in the live animals (problem: may be slight or non-consistent; asymptomatic carriers) gross pathological findings (lesions are characteristic but not always obvious) serological tests culture and identification of the causative organism (difficult if anti-microbial treatment) PCR effective meat inspection + laboratory examinations of suspect lesions

provisional freedom from disease + 2 years freedom from disease + 2 years freedom from infection

Specific criteria: no clinical or pathological evidence of CBPP (for the declaration of provisional freedom: at least for 3 years or 1 year if no vaccination); effective veterinary service; effective meat inspection; all evidence suggestive of CBPP is investigated by laboratory methods; diagnostic procedures capable of differentiating Mycoplasma mycoides from other bovine Mycoplasma infections;

effective reporting system; effective system to prevent the introduction of infection (e.g. border control, quarantine); if vaccination has been used, all vaccination against CBPP has ceased by the date of declaration of provisional freedom.

Country free from infection without intermediate steps continuously free from CBPP for at least 10 years and no vaccination for at least 10 years; no clinical or pathological evidence for at least 10 years; adequate disease surveillance and reporting system; use of diagnostic procedures capable of differentiating Mycoplasma mycoides from other bovine Mycoplasma infections

localized temporary outbreak: stamping-out policy, which may be supported by zonal vaccination. re-establishin infection free status: 2 years from the date of the last case; demonstration that the outbreak did not represent endemic infection and that the disease has been eradicated by the actions taken