Stocking - it is inadvisable to have calves of different ages in the same air space. Older, apparently recovered calves may still be carrying viruses, which will then spread to younger, susceptible calves. 5 days - E.Coli is most common. Toxin produced causes collapse of blood vessels. Treatment must be with electrolytes to expand blood volume and overcome dehydration.
Antibiotics are also essential.
Vaccines and antisera may help to prevent disease. Cryptosporidia These pathogens cause damage to the gut lining and reduce nutrient absorption. Antibiotics may help secondary bacterial infection in viral infections. Colostrum is essential to prevent all early types of scour. Cryptosporidia may be treated with sulphonamides.