Here's why:
* Different viruses: The viruses causing human gastroenteritis (like norovirus and rotavirus) are different from the viruses causing canine gastroenteritis.
* Different bacteria: While some bacteria like Salmonella can infect both humans and dogs, these are less common causes of "gastric flu" in dogs compared to parvovirus or distemper, which are not infectious to humans.
* Different susceptibility: Humans and dogs have different immune systems, making them susceptible to different pathogens.
However, it's crucial to be cautious:
* Cross-contamination: Even though the specific viruses are different, bacteria like Salmonella can be passed from dogs to humans through contaminated food, water, or contact with feces. Proper hygiene is crucial.
* Zoonotic diseases: Some diseases like rabies and leptospirosis are zoonotic, meaning they can be transmitted from animals to humans. It's important to keep your dog vaccinated against these diseases.
If you're experiencing symptoms of vomiting or diarrhea, it's best to consult a doctor. Your doctor can diagnose the cause of your illness and provide appropriate treatment.
Remember: While humans can't catch "gastric flu" from dogs in the typical sense, it's always wise to practice good hygiene and keep your dog vaccinated against zoonotic diseases.