5. Address the envelope. In the lower right third of the envelope, write the name of the person you are sending the letter to. Write the company name on the line below that (if there is a company name).
Once inside a new host, it takes approximately 6 months for the larvae to mature into adult heartworms. Once mature, heartworms can live for 5 to 7 years in dogs and up to 2 or 3 years in cats. Because of the longevity of these worms, each mosquito season can lead to an increasing number of worms in an infected pet.
About Heartworms. Heartworms are transmitted to dogs through mosquito bites. If a dog has heartworms, he is not contagious to other people and pets. Because of the warm climate, dogs in Texas must be on a monthly heartworm preventative.If a dog isnât on a preventative, after being bitten by an infected mosquito, the worms will grow around the heart until they eventually kill the dog.f a dog has heartworms, he is not contagious to other people and pets. Because of the warm climate, dogs in Texas must be on a monthly heartworm preventative. If a dog isnât on a preventative, after being bitten by an infected mosquito, the worms will grow around the heart until they eventually kill the dog.