Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to diagnose parvovirus in dogs [title] Look for the first signs of illness. [step] These first signs are vague and non-specific, and include restlessness, fever, lack of energy, and loss of appetite. Sickness and diarrhea usually develop within 24-48 hours of this.

Ending1: While some symptoms appear in the following days, others are concerned about the health of your dog, they vary according to age. [substeps] Nausea and headaches because of injury to the liver like diarrhea at night or fleas repeated pawing against the sides of the mouth. Ending2: These symptoms should be detected by seeing a vet immediately. A veterinary assessment and diagnosis can help you put together a more precise plan with your dog. Ending3: Make sure your dog is healthy and has plenty of energy that is strong and well-mannered in general, including urinating and defecating. [title] Observe symptoms of parvovirus in wild dogs. Ending4: [substeps] The incubation period for parvo is 5-7 days, but can be as little as 2 days or as many as 20 days. [title] Be concerned if your dog is vomiting and has diarrhea.

Answer format: ending1/ending2/ending3/ending4