The flu virus that is able to cross the species barrier mainly infects warm-blooded mammals and birds. So any pet in close proximity to you that is warm-blooded is at risk. Other pets, such as reptiles, are not at risk.
The virus can be spread through the air, direct contact, or by your pet's toys that you have handled. Just like with humans, the flu virus can be deadly in some cases. It might take you 2 to 3 weeks to totally recover from the virus and that could also be the case for your pet.
If the flu virus has been in your household and your pet shows symptoms such as loss of appetite, difficulty breathing, sneezing or mild cough, lethargy and/or fever, then give your veterinarian a call. Because this virus is contagious you should be careful not to expose your pet to others until you have seen your veterinarian.