DNA Viruses Chapter 24 Review PDF

Chapter 24 – DNA Viruses 1. What is Reyes’ syndrome? What is it linked to? a. Flu and chickenpox; use of aspirin; causes massive inflammation throughout the body and damage to liver and swelling in the brain 2. What are the parts of the virus made of (Capsid, envelope, Nucleic acid)...

Chapter 24 – DNA Viruses 1. What is Reyes’ syndrome? What is it linked to? a. Flu and chickenpox; use of aspirin; causes massive inflammation throughout the body and damage to liver and swelling in the brain 2. What are the parts of the virus made of (Capsid, envelope, Nucleic acid) (7) a. 3. Smallpox / Variola major (7) a. Causes severe disease with a 20% mortality rate 4. Reasons that Smallpox was able to be eradicated (9) a. Inexpensive, stable, and effective vaccine b. No animal reservoirs c. Obvious symptoms allow for quick diagnosis and quarantine d. Lack of asymptomatic cases e. Virus is only spread via close contact 5. Human Herpes viruses – diseases they cause, how transmitted a. HHV-1: cold sores (spread by close contact) b. HHV-2: genital herpes (spread by sexual intercourse) 6. Mononucleosis characteristics, other diseases it may be associated with (27) a. Asymptomatic in children—fever, sore throat, swollen lymph nodes in neck, fatigue, enlarged spleen b. 95% of adults have antibodies, 20% secrete orally c. Replicates in resting memory B cells d. Form unusual lobed nuclei (mononucleosis) e. Produce heterophile antibodies (generalized immunity) f. May be involved in multiple sclerosis, Hodgkin’s lymphoma, and nasopharyngeal cancer 7. Adenoviruses diseases (38) a. One of the many causative agents of the common cold b. Respiratory infections – viruses taken into cells lining the respiratory tract via endocytosis; causes sneezing, sore throat, cough, headache, and malaise c. Attenuated vaccine is available only for military personnel 8. Hepadnaviruses – diseases (42) a. Enveloped DNA viruses b. Hepatitis B virus (HBV)