Professor Bayoumi, FatenAbdEL Wahed, Mai (AL)AbdEl Latif, Yousra (TA)2019-10-152019-10-152019© 2019 MSA university . All rights reserved.Abdelfattah Mohamed Gabal Marina Waleed AbdelrahmanMohamed Deyaaeldin Michael Makram Abdullah Hamdi Mohamed Akram Mohamed Ahmed Alaaeldin Fangary Mohamed Hassan Ahmed Sameh Maher Mohamed Hossam Eldin Amira Hamdy Hassan Mohamed Mahfouz Bassam Osman Labib Mohamed Salah AbdoAllah Bassel Tarek Mostafa Ahmed Mostafa Dina Aboalkassem Hamdy Omar Abdelaziz Ahmed Donia Adel Elbanna Omar Ashraf Ahmed Eiad Mohamed Abdelmoneam Rawan Magdy Gerges Sabry Shehata Rawda Ashraf Naguib Hatem Fouad Kamel Sarah Khaled Khalifa Ibrahim Nabawy Shahdan Ehab Khaled Salah Shorouk Gamal Ali Kholoud Nasser Mohamed Soheib Samy Mohamed Manar Mohamed Othman Tasneem Magdy Ahmedhttp://repository.msa.edu.eg/xmlui/handle/123456789/319Viruses were first described due to infection of tobacco leaves in the end of the year of the 19th century. The name of the viruses was coined from Latin word meaning poison or slimy liquid. Two scientists contributed to the discovery of the virus, tobacco mosaic virus. In 1892, lvanoski reported that extracted from infected leaves were still infectious after filtration through chamber land filter candle. In 1898, Beijerinck was the first showed that the instant was able to migrate in agar gel, so being an infectious soluble agent. After the development of porcelain filter, viruses were the first discovered that filter named the chamber land Pasteur filter was that can remove any visible bacteria in the microscope from any liquid sample.enOctober University for modern arts and artsجامعة أكتوبر للعلوم الحديثة والآدابMSA UniversityFaculty of PharmacyImmunology and Virology