Genetic Variation in Pneumocystis carinii Isolates from Different Geographic Regions: Implications for Transmission

Charles B. Beard,* Jane L. Carter,* Scott P. Keely,† Laurence Huang,‡ Norman J. Pieniazek,* Iaci N.S. Moura,* Jacquelin M. Roberts,* Allen W. Hightower,* Michelle S. Bens,* Amanda R. Freeman,* Sherline Lee,* James R. Stringer,† Jeffrey S. Duchin,* Carlos del Rio,§ David Rimland,§¶ Robert P. Baughman,# Deborah A. Levy,* Vance J. Dietz,* Paul Simon,* and Thomas R. Navin*
*Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; ‡University of California, San Francisco General Hospital, San Francisco, California, USA; §Emory University School of Medicine, Division of Infectious Diseases, Atlanta, Georgia, USA; ¶Veterans' Affairs Medical Center, Atlanta, Georgia, USA; #University of Cincinnati College of Medicine, Cincinnati, Ohio, USA