The Atomic Energy Commission of Syria (AECS) has organized a theoretical and practical course that focuses on ''The Use of Molecular Tools in Studying Host-Pathogen Interactions''. The course is to be held on 2-12 April 2007 in Damascus, Syria. For more information and for applications contact Azza Kashlan, Director, Relations and Training Department, Atomic Energy Commission of Syria, P.O. Box 6091, Damascus, Syria (phone: 963 (11) 213-2580; fax: 963 (11) 611-2289; e-mail: atomic@aec.org.sy)..