Disestablishing Paternity: Letter Received Asking if I Am Her Father

My question involves paternity law for the State of Ohio and Florida

I received a letter asking if I might be the father of a 36 year old woman. I most definitely am not her father. I have no idea how she decided to contact me. I would like to reply with a short letter denying paternity, but I have a vague feeling that not responding is somehow a better choice.

Should I respond? I am in Ohio. She is in Florida.

Thanks.

Disestablishing Paternity: Letter Received Asking if I Am Her Father