Heartworms are contracted through mosquitos—they bite a dog that is infected with heartworms and
                transfer
                the microfilaria to another dog. This is why all dogs, especially those in warm Houston climates where
                mosquitos are prevalent, MUST be on a strict schedule for a monthly heartworm preventative. Heartworms
                are
                NOT contagious between dogs that are on a preventative.
              Please do not let a heartworm positive status deter you from adopting a dog! They are all so
                deserving!
                AJL will cover all expenses relating to heartworm treatment, even after a dog is adopted, until the dog
                tests negative. Please note, the adopter will be responsible for monthly heartworm/flea
                  preventatives and
                  any other vet expenses unrelated to heartworm treatment post-adoption.