A postdoctoral research position is available immediately at the Division of Infectious Diseases, Children's Hospital Boston and Harvard Medical School, for investigating virulence gene regulation and adaptive responses of Streptococcus pyogenes to oxidative and nonoxidative effectors of human phagocytes. Ph.D. in microbiology, molecular biology, or closely related field is desired. Applicants should send their CV including contact information for three referees by e-mail to This e-mail address is being protected from spambots. You need JavaScript enabled to view it , or mail to Dr. Ioannis Gryllos, Division of Infectious Diseases, Children's Hospital Boston, Boston MA 02115. For more information or questions please contact by e-mail or call at 617-919-2908.