/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: kafafy https://cdn.slidesharecdn.com/profile-photo-kafafy-48x48.jpg?cb=1563569409 Dr. Mohamed Hashem Kafafy Ass.Researcher of Virologyy Veterinary Serum and Vaccine Research Institute (VSVRI) Pox Vaccines Research and Production Department And Laboratory Director of Sudia Emirate Vet. Quarantine mhkafafi@yahoo.com