Bovine Adenovirus (BAdV) has 10 known serotypes with a worldwide distribution. The virus is a member of the adenoviridae family of viruses. Infection results in respiratory and gastrointestinal disease, as well as ocular and generalized disease. It may contribute to pneumonia depending upon serotype. Infected animals shed the bovine adenovirus in feces and respiratory secretions for 10 to 14 days. However, some cattle remain infectious for longer periods of time. Bovine adenovirus infects cattle across the globe. It is especially prevalent in Central America and Africa.
Bovine Adenovirus Symptoms
Younger animals show clinical signs as maternal antibodies wane. It is common to see reduced appetite with abdominal distention, diarrhea, coughing, dyspnea, nasal discharge and tachypnea are often seen and worsen with secondary infection. A fourfold rise in antibody titre over the disease course confirms diagnosis. Adenoviral presence alone can not confirm diagnosis as it may also be present in healthy cattle. Isolation of the virus is the only method to determine serotype. Postmortem may demonstrate lesions in respiratory and gastrointestinal tracts. Consult your vet for proper diagnosis.
Bovine Adenovirus Treatment
Treatment is symptomatic and antibotic medications may be administered by a vet to help prevent other infections. Prevention focus is on insuring that young cattle receive adequate colostrum when born, as this has been shown to provide immunity to calves. Also important is to provide the cattle with adequate nutrition and clean bedding.
Bovine Adenovirus Vaccination
There is a vaccine available though it is not available worldwide, but it has shown to be effective in limiting the incidence and aggressiveness of bovine adenovirus. The vaccine is frequently combined with other ingredients and is administered in two to four doses. The vaccine is administered via a subcutaneous or muscular injection. The vaccine is available across Europe and Japan, but it is not yet available in the United States.