Viral Pathogens

Question 1

What is the most common route of transmission?

Answer 1

Respiratory and other mucosal surfaces.

Question 2

Are enveloped viruses or naked viruses more sensitive to pH, high temperature, and drying?

Answer 2

Enveloped viruses

Question 3

Define acute infection.

Answer 3

An infection characterized by a high viral replication rate and the production of a large number of progeny. Examples: common cold (local) and measles (systemic)

Question 4

Define persistent infection.

Answer 4

A type of chronic viral infection, characterized by viruses that continue to produce new virus over a long period of time.

Question 5

Define latent infection.

Answer 5

A type of chronic viral infection characterized by a viral genome being relatively silent until the immune system is compromised and the virus becomes active again.

Question 6

Define slow infection.

Answer 6

A type of chronic viral infection characterized by a long incubation period followed by eventual disease that is progressive deterioration death.

Question 7

Define: Transforming viral infections

Answer 7

Retroviruses integrate into the host genome and activate viral or hos oncogenes. Some may not integrate and cause host genome breakage at oncogenes or tumor suppressor genes