Calves are most commonly affected at 8 – 14 days old when there is an acute onset of diarrhoea with the passage of very watery yellow/green Rotavirus infection is the most common cause of severe diarrhoea in young beef suckler calves. Infection can produce the complete range of clinical signs from no observed abnormality through to severe diarrhoea and dehydration with high mortality. There is a build-up of infection with most cases during the second and third months of the calving period. Spread of infection occurs most rapidly in housed beef calves. faeces with infection spreading rapidly among young calves in the group. Typical early signs include a reluctance to stand and suck, mild depression and salivation. The calf rapidly becomes dehydrated and recumbent. The eyes are sunken and the skin becomes tight and inelastic. The abomasum and intestines are often distended with fluid and gas.
Treatment & Prevention
Bovilis Rotavec Corona is a ‘one dose’ injectable vaccine, given to pregnant cows to subsequently help protect the calf from diarrhoea caused by rotavirus, coronavirus, and E. coli K99 (F5) and F41 once the calf has been fed sufficient colostrum.

How to use:
Dose: 2 ml
Route of Administration: Intramuscular
A single injection should be given during each pregnancy between 12 and 3 weeks before calving is expected.
How Does it Work:
Bovilis Rotavec Corona will stimulate the dam to produce antibodies which will protect the calf against rotavirus, coronavirus and E. coli K99 (F5) and F41. These antibodies will be stored in the dam’s colostrum. The dam will pass these antibodies to the calf through the colostrum at the first milk feeding. Therefore, it is crucial that the calf receives adequate colostrum as soon as possible after birth.

Remember the 1,2,3 rule when feeding colostrum. In the 1st 2 hours, ensure the calf gets at least 3 litres of colostrum. Feeding the calf good quality colostrum will enhance the protection of the calf against these scour causing pathogens.
Why use Bovilis Rotavec Corona?
- Reduces the severity of diarrhoea caused by E. coli (K99 and F41)
- Reduces the incidence of scours caused by rotavirus
- Reduces the shedding of virus by calves infected with rotavirus and coronavirus
- Unique 28 day in-use shelf life
For more information, contact your territory manager.