7 dogs have died after a Parvovirus outbreak in Lancaster County.
The infection spreads mostly in the summer and attacks dogs that are not vaccinated.
Dogs can contract Parvo through feces, urine and blood.
ORCA, the Organization for Responsible Care of Animals in Lancaster said $200 is a small price to pay to vaccinate your dog, considering treatment costs five times as much, at around $1000.
If left untreated Parvo could kill in a matter of days.
"You step on some dogs urine, walk into your house, your dogs ‘un-inoculated’, it could get the virus and die," said ORCA co-founder, Connie Konravy.
The puppy can be as young as six weeks when it can get the Parvo vaccination.
Veterinarians advise that no one walk their dog outside, unless they have had all three shots.