Dogs’ small white blood cells will generally start to rise after the fifth day, because the first three days are the early stages of the disease, and the white blood cells will begin to decline. The fourth and fifth days are the most serious stages, so if you survive these five days Days later, the dog's condition will begin to improve and the white blood cells will rise again.
Tip:
Although parvovirus is an infectious disease, there is now a greater hope of cure. Once you find that your dog has parvovirus, don’t give up and send it to the hospital for treatment in time.