General Virology (Pet Animals Program) VIR-312


This lecture is intended for registered students only. Please, be advised that oral discussions given during class are an integral part of the lecture.

Stay safe.

Updated class material VIR-304

Dear future colleagues, 

I have updated my vaccines and vaccination against virus infections lecture. Please, find it in the class materials link. There is a lot of information in the lecture that is related to COVID-19 vaccines, that particular material is for your information only. You will find that it can explain a lot of questions that you, or others, may have. However, the basic concepts describing vaccine production platforms are required.

Email me if you have questions or comments.

Stay safe, keep other safe.

VIR 304 (Virology I) lectures


This lecture is intended for registered students only.

Advanced General Virology


Title: Advanced General Virology (VIR 1070). Course policy and welcome notes.

Date: October 2021.

Author: Ausama A. Yousif, DVM, MSc, PhD.

Dear future colleagues,

Shawky, M., E. Taha, B. Ahmed, M. A. Mahmoud, M. abd elaziz, M. Faisal, and A. Yousif, "Initial Evidence That Gilthead Seabream (Sparus aurata L.) Is a Host for Lymphocystis Disease Virus Genotype I", Animals, vol. 11, no. 11, 2021. AbstractWebsite

Marine and brackish water aquacultures are rapidly expanding in the Mediterranean basin. In this context, Egypt recently received a shipment of a 1.5 million juvenile gilthead seabream (Sparus aurata L.) from European Mediterranean facility. Within a few weeks of their arrival, 95% of the imported fish developed nodules on their skin and fins that lasted for several months. This study was undertaken to describe the clinical disease course, to identify the causative agent, and to investigate its origin. Preliminary diagnosis based on gross lesions and postmortem examination suggested lymphocystis disease (LCD), caused by the lymphocystis disease virus (LCDV; genus Lymphocystivirus, family Iridoviridae). Histopathological and ultrastructural features were typical of LCDV infections. PCR followed by sequencing and phylogenetic analysis of a 306-bp fragment of the major capsid protein (MCP) gene demonstrated the presence of LCDV genotype I, originally associated with LCD in Northern European countries, with 99.7% and 100% nucleotide and deduced amino acid identity values, respectively. LCDV genotype I has neither been reported in this species nor in the region. Regardless of the source of infection, findings of this study add to existing knowledge about the ecology of LCDV genotype I and its host range.

Virology (B) - VIR 322


This systematic veterinary virology course aims to provide undergraduate students with in-depth information on select viruses of economic and public health importance using State-of-the-Art lectures, tutorials, and practical sessions. The specific aspects of pathogenesis, immune response to infection, viral evolution, and epidemiology will be discussed together with the general properties of the family to which each virus belongs. Detailed information about available diagnostic tools and vaccines will be provided.

General Virology PHA 251


Dear future colleagues, I have final exam example questions and exam format to give you a feeling of how the final exam will look like. I have added an updated version of the immunity lecture. It contains some notes.

I have also added an updated  version of the enrichment questions intended to give students a higher level of understanding of the immune system. Enjoy.

The lecture from last year is still relevant. This material is intended for registered students only.

Undergraduate Lectures Links Second Semester 2021 V3

Dear future colleagues, The recent change in national holidays dates has shifted some of our teaching schedules. My lecture dates for VIR-304 and VIR-355 remain the same. However, my PHA-251 lecture dates have been pushed back a week; the links remain the same but the dates have been changed in the updated file. Stay safe.

Professor Ausama Yousif’s Lectures (VIR -304) 9-11 PM (Tuesday)


Date (dd/mm/yy)

Eltom, K. H., A. C. Althoff, S. Hansen, S. Böhlken-Fascher, A. Yousif, H. A. El-Sheikh, A. A. ElWakeel, M. A. Elgamal, H. M. Mossa, E. A. Aboul-Soud, et al., "Differentiation of Capripox Viruses by Nanopore Sequencing", Vaccines, vol. 9, issue 4, 2021.

Criteria of review assignment evaluation

Dear colleauges,

We talked about this during class and office hours. However, I wanted you to have a clear view of how your assignments will be evaluated. I suggest that you use the information below to evaluate your own work. It is important that you learn to evaluate your own work as a scientist. Best of luck.

A. Title: [4 points]

Relevance to the topic