Parvovirus is a highly contagious viral disease that primarily affects puppies and unvaccinated dogs. The symptoms can appear 3 to 7 days after exposure and can include:

1. **Severe Vomiting**: Dogs may vomit multiple times a day, which can be very distressing for both the dog and the owner.
2. **Diarrhea**: This often presents as a severe, bloody diarrhea. The diarrhea can lead to dehydration quickly.
3. **Lethargy**: Infected dogs may show signs of extreme tiredness and lack of energy, seeming uninterested in their usual activities.
4. **Loss of Appetite**: Dogs may refuse to eat or drink, which can worsen dehydration and overall health.
5. **Fever**: A high fever may be present, although some dogs may have a normal temperature.
6. **Abdominal Pain**: Dogs may show signs of discomfort or pain when their abdomen is touched.

If you suspect your dog has parvovirus, it is crucial to seek veterinary care immediately, as this can become a life-threatening condition very quickly. Early intervention can greatly improve the chances of recovery.

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Topics covered in this question:

Dog Health Symptoms Puppy Care Parvovirus Canine Disease