ATLANTA -- This is the statement released by Robert Cooksey, the father-in-law of TB patient Andrew Speaker:

First and foremost, I am concerned about the health and well being of my son-in-law and family, as well as the passengers on the affected flights.

I am the father-in-law of Andrew Speaker, who was recently publicly identified as a person infected with extensively drug resistant tuberculosis. I do work at the Centers for Disease Control and Prevention. I have worked at the CDC for 32 years. I'm a research microbiologist in CDC's Division of Tuberculosis (TB) Elimination, and my work does involve working with a wide range of organisms, including TB. As a research microbiologist, my laboratory work involves identifying the characteristics and features of bacteria.

As part of my job, I am regularly tested for TB. I do not have TB, nor have I ever had TB. My son-in-law's TB did not originate from myself or the CDC's labs, which operate under the highest levels of biosecurity.

I wasn't involved in any decisions my son-in-law made regarding his travel, nor did I ever act as a CDC official or in an official CDC capacity with respect to any of the events of the past weeks.

As a parent, frequent traveler, and biologist, I well appreciate the potential harm that can be caused by diseases like TB. I would never knowingly put my daughter, friends or anyone else at risk from such a disease.

I would ask the media to respect my privacy and that of my family, and I will be respectfully declining all media requests. My thoughts and focus over the next few months will be with my family, and we are hopeful that Andrew will have a fast and successful recovery.

Robert C. Cooksey