Both of my cats, Tasha & Beaux were healthy. They had gotten fleas, Tasha’s was worse than Beaux’s. My son gave her a flea bath and within 24 hrs. she was gone. This was on January 3rd, 2012. I didn’t know why. About two and a half weeks later Beaux’s fleas were seriously intense. My daughter-in-law has two other cats that live with us and said I use Hartz One Spot Flea drops on my cats I will put some on them all. My Beaux died in less than 24 hrs. at the vets office. He had seizures and went into respiratory failure on January 26th, 2012. I did not make the connection until after he had passed. My son used Hartz flea shampoo on Tasha. We need to get this stuff off of the market before another animal dies. I am broken hearted and angry at the same time. This is a horrible travesty.