Synonyms

No known synonym

Name of the disease in English

Bronchopneumonia and emphysema by Respiratory syncytial virus (BRSV)

The disease in brief

 Inflammation of the lungs and bronchi. This is a clinical variant of acute viral bronchopneumonia, which by its characteristics should lead to suspicion of BRSV.

Calves gathered in batches for fattening will be the number one victims of this respiratory infection, which can also affect older cattle.

Clinic & diagnosis

In the early stages of infection, fever, increased respiratory rate, small-deep cough, abundant-clear sputum, epiphora-lacrimation, increased respiratory noise on auscultation are noted. When signs of dyspnea appear, it is the observation of jerky respiratory movements with difficult or forced expiration that suggests a suspicion of BRSV which of course remains to be confirmed.

Typical sign of the disease

No description

Pictures

See below

Diagnostic formulas

No description

Differential diagnosis

-Acute bronchopneumonia - stage of bacterial infection RS24

-Emphysema of the regains-acute form RS28

-Poisoning with respiratory manifestation N362

-Poisoning by Galega N134

Confirm a suspicion?

Nasal swabs often reveal diverse flora that is not representative of the disease. Tracheobronchial lavage is the method of choice for isolating pathogens by bacteriology and virology.

Isolated serological samples at the end of the illness, or coupled at the beginning-end of the illness-3 weeks apart can help to provide a group view.

Prognosis and treatment

At this stage of early infection, treatment should aim to limit the worsening of individual disorders and avoid contagion. The question of implementing emergency vaccination (intranasal vaccination against the RSV virus in contact animals) may be raised.

Prevention

Prevention of these infections focuses on controlling viral and bacterial infections byadministration of often multivalent vaccines.

Controlling and correcting risk factors is also essential. This depends enormously on the types of farms affected, the factors being very specific to the category of animals affected: calves from suckler farms (colostral intake, weather conditions, building environment, etc.), veal calves (ventilation, feeding, quality of the incoming calf, etc.) or young cattle in fattening workshops (transport, number of different origins in the batches, quarantine, environment, etc.).

References

Veterinary Medicine-Pocket companion -9th Edition BLOOD DC-page 415