Subtropical areas of Australia currently (January 2022) experiencing substantial outbreaks of Bovine Ephemeral Fever (BEF). BFE is also known as Three-day Sickness although the symptoms can persevere for much longer. Up to 42 days in documented cases. Provision of care for down animals is important. Shade, water, dry feed and control of biting insects. Most, but not all animals will recover.
The Dep. of Primary industry says the following about BFE:
“Bovine Ephemeral Fever (BEF) is a viral disease of cattle and buffalo. Typically, affected animals are only sick for a few days, hence the alternative name – Three Day Sickness.
There is a sudden onset of fever- as high as 41°C compared with the normal temperature of about 380C. The temperature returns to normal within 36 hours.
The first sign in milking cows is a sudden and severe drop in milk production. Cows in advanced pregnancy may abort. This is probably because of the fever, rather than a specific effect of the virus.
Animals stop eating and drinking and become depressed. They usually drool saliva, develop a stringy nasal discharge, and may have watery eyes.”
Day two :
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Epidemiology of Bovine Ephemeral
Fever in Australia 1981-1985
Gyr Cattle 