Doctors on Pets (1 Letter) Re "Can Fido and Whiskers Enrich Children's Lives?" (18 and Under, April 10): One of the issues that has never had much airing regarding pets" inclusion in families is how physicians handle it. They have, more or less, a reactive approach, often depending on their specialty. It is not uncommon for obstetricians, for example, to suggest that pregnant women remove cats from their homes because of the potential for infection from toxoplasmosis. Often this recommendation is made without consideration for alternative, workable solutions. And although having a pet to help people with an autism spectrum disorder can be helpful, at times it can be torturous for the pet. It would be productive to see those researchers involved in the human-pet bond interact with various specialty academies in human medicine so that reasonable guidelines could be created. Charles A. Cohen Marina del Rey, Calif. The writer is a veterinarian.