Why do I have to deworm him/her if theyve already been dewormed?
Puppies can EASILY get reinfested with worms just by playing out in the yard. Worms are very common in puppies and as long as you follow the deworming guildlines as set up by your veterinarian, you and your new puppy should be just fine. Puppies are also susceptible to Giardia thru crowded public places; like beaches and dog parks.
