Possible reasons for your sister's stomachaches:
* Parasites: Puppies are often infected with parasites like roundworms or giardia. These parasites can be passed to humans through contact with feces or even through contaminated surfaces.
* Bacterial Infections: Puppies can carry bacteria like Salmonella or Campylobacter, which can cause food poisoning in humans.
* Allergies: Some people are allergic to dog dander, saliva, or urine. These allergies can cause a range of symptoms, including stomach upset.
* Stress: A new puppy can be stressful for a child, and stress can sometimes manifest as physical symptoms like stomachaches.
* Other factors: It's also possible that your sister's stomachaches are unrelated to the puppy and are caused by something else entirely, like a virus or a change in diet.
What to do:
* See a doctor: The best thing to do is to take your sister to see a doctor. They can examine her, ask about her symptoms, and run tests to rule out any medical conditions.
* Keep the puppy clean: Make sure the puppy is regularly dewormed and vaccinated, and that you are practicing good hygiene around the puppy, like washing your hands after touching it and cleaning up after it.
* Monitor your sister's symptoms: Pay attention to your sister's symptoms and any other changes in her behavior. This can help you determine if there is a connection to the puppy.
* Talk to your parents: Talk to your parents about your concerns and ask them to take your sister to the doctor.
It's important to remember that while puppies can be a source of illness, they are also wonderful companions. With proper care and hygiene, you can minimize the risk of getting sick from your new puppy and enjoy all the fun and love that comes with having a dog.