Part A: Answer the following questions :

1- What are the main viral antigens ?

2- What is the incidence of viral infection ?

3-What are the associated symptoms ?

4-What are the affected organs ?

5-What are the lab methods for diagnosis ?

Part B: Writing short assay .

1- Write a short assay (no more than 500 Words) about the assigned virus including information used in part A and the following: Brief description about viral structure, pathogenesis and lab method of diagnosis. .

2- You should use at least 2 article references and 2 web addresses. .

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