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NAVLE® Question of the day

MO TU WED TH FR

June 27, 2024

NAVLE

Several cattle within a herd present with high fevers, up to 106°F (41°C), feet-stomping, and salivation.

Some of the cows have vesicles in the interdigital space, and vesicles and denuded areas in the mouth. Necropsy of one of the cows shows white streaks on the heart in addition to the above findings.

Which one of the following choices is a top differential?

A - Q fever

B - Bluetongue

C - Bovine papillar stomatitis

D - Foot-and-mouth disease

E - Bovine respiratory syncytial virus

Sorry. You chose "E - Bovine respiratory syncytial virus" but the correct answer is "D - Foot-and-mouth disease"

The top differentials for vesicular disease in cattle include foot-and-mouth disease (FMD) and vesicular stomatitis.

The US has been free of FMD since 1929, therefore FMD is a reportable disease. The disease affects cloven-hoofed animals. Pigs and cattle are most severely affected.

Vesicular stomatitis is clinically indistinguishable from FMD but also can affect horses.

Bovine papillar stomatitis causes proliferative raised lesions.

Bluetongue primarily affects sheep (typically subclinical in cattle). It causes vasculitis with clinical presentation of fever, edema, reluctance to eat/move.

Images courtesy, Dr Jerry J Callis, Dr Brian WJ Mahy and the CDC.