% Cells Cause Tumors Retrovirus Transformation Assay 120 100 80 60 40 20 0 10 -Virus A -Virus B 20 Days Post Infection 30 40

Which protein is a viral protein? CD4 CCR5 RNA polymerase gp120

Editim 40- A 54-year old man presents with a painful, blistering skin rash on the left side of his torso, accompanied by a headache and low grade fever. He says that he has lately been under a great deal of emotional stress. A- Which one of the following viruses is the most likely cause? 1- Measles 2-VZV 3-norovirus 4-hantavirus 5-rubella virus B- This condition often occurs many years after a person has had: 1-measles 2-hepatitis 3-influenza 4-infectious mononucleosis 5-chickenpox 41- Which of the following is not one of the three most common causes of bacterial meningitis? 1- E.coli 2- H.influenzae 3-N.meningitidis 4-S.pneumoniae 42- Which of the following is the most common cause of pharyngitis? 1- E.coli 2-S.aureus 3- S.pyogenes 4- Viruses 43-The most common cause of cystitis is 2-C.albicans 1- E.coli 3-S.epidermidis 4-S.saprophyticus 44- The most common cause of urethritis is 1- C.trachomatis 2- E.coli 3-M.pneumoniae 4-S.aureus.

14. Select the answer that details the general steps in viral multiplication. O Endocytosis, penetration, replication, maturation and exocytosis O Absorption, penetration, synthesis, assembly and release O Endocytosis, replication, assembly and budding O Absorption, duplication, assembly and lysis O Penetration, absorption, synthesis, assembly and release

1. Throughout history there are many different types of virus that have caused impacts both small and large. Is there a possibility a virus could be considered a "good virus"? Please provide an argument for both yes and no with the use of a proper example.

Demonstrate your understanding of the way a retrovirus replicates once inside a host cell. Name the type of host cell most likely infected by HIV

59 Which of the following are types of immunotherapy? Check All That Apply chemotherapy cytokine therapy monoclonal antibodies 4

A dormant virus can be activated and enter the Lytic cycle O True O False Viruses produce toxins in order to cause diseases. True O False

10 what characteristics of a virus protects if from immune system rcognition   Infected tissue cell membrane antigens repel macrophages infected cells Toxins cytokines destroy neutrophils inactivates recptors on the virus cell membrance

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