(Q4) Viscerotropic Viruses (Ch. 27)

Question 1

Viscerotropic Viruses

Answer 1

• Viruses that tend to attack or affect the viscera.
• Hepatitis A
• Hepatitis B
• Hepatitis C
• Epstein-Barr Virus
• Cytomegalovirus
• Mumps
• HIV/AIDS
• Creutzfeldt-Jakob Disease

Question 2

Hepatitis A (HAV)

Answer 2

• Infectious Hepatitis
• Acute inflammatory disease of the liver
• Vaccine available

Question 3

Hepatitis A (HAV) Portal of Entry and Exit

Answer 3

GI Tract

Question 4

Hepatitis A (HAV) Mode of Transmission

Answer 4

Ingestion of contaminated food or water

Question 5

Hepatitis B (HBV)

Answer 5

• Serum Hepatitis
• Acute inflammatory disease of the liver
• Causes long-term liver damage or increased liver cancer risk
• Vaccine available

Question 6

Hepatitis B (HBV) Portal of Entry and Exit

Answer 6

• Broken Skin
• Mucous Membranes

Question 7

Hepatitis B (HBV) Mode of Transmission

Answer 7

Infected body fluid (blood,semen etc)

Question 8

Hepatitis C (HCV)

Answer 8

• Non A, Non B Hepatitis
• Inflammatory disease of the liver
• Causes long-term liver damage or increased liver cancer risk
• Worst form of hepatitis

Question 9

Hepatitis C (HCV) Portal of Entry and Exit

Answer 9

• Broken Skin
• Mucous Membranes

Question 10

Hepatitis C (HCV) Mode of Transmission

Answer 10

Infected body fluid (blood, semen etc)

Question 11

Epstein-Barr Virus (EBV)

Answer 11

• Infectious Mononucleosis/Mono/Kissing Disease
• A type of herpes virus
• Those who recover usually become carriers for several months and shed the virus in their saliva

Question 12

Epstein-Barr Virus (EBV) Portal of Entry

Answer 12

Mucous Membranes

Question 13

Epstein-Barr Virus (EBV) Mode of Transmission

Answer 13

Body fluids (salvia)

Question 14

Cytomegalovirus (CMV)

Answer 14

• CMV Inclusion Disease
• Takes its name from the enlarged cells found in infected tissues: “owl eye cells”
• Most cases are asymptomatic
• Can cross the placenta and cause neurological damage to the fetus
• type of herpes virus

Question 15

Cytomegalovirus (CMV) Portal of Entry and Exit & Mode of Transmission

Answer 15

Found in most bodily fluids so there are many modes of transmission and many portals of entry and exit

Question 16

Mumps Virus

Answer 16

• Epidemic Parotitis/Mumps
• Enlarged jaw tissues from swollen/infected salivary glands (parotids)
• Secondary diseases: orchitis, oophoritis, meningitis, pancreatitis or deafness
• MMR Vaccine available

Question 17

Mumps Virus Portal of Entry and Exit

Answer 17

Mucous Membranes

Question 18

Mumps Virus Mode of Transmission

Answer 18

Bodily fluids (saliva, or respiratory fluids)

Question 19

Human Immunodeficiency Virus (HIV)/ Acquired Immunodeficiency Syndrome (AIDS)

Answer 19

• HIV/AIDS
• a virus that attacks the body’s immune system and makes the body susceptible to opportunistic infections
• If T-cell count gets to a certain low point (less than 200 T-cells/mm^3), it is considered AIDS

Question 20

Human Immunodeficiency Virus (HIV) Portal of Entry and Exit

Answer 20

• Genitourinary

Question 21

Human Immunodeficiency Virus (HIV) Mode of Transmission

Answer 21

• Sexual Contact
• Bodily Fluids

Question 22

Creutzfeldt-Jakob Disease (CJD)

Answer 22

• A degenerative brain disorder that leads to dementia and death
• Disorder is caused by a prion
• Can occur spontaneously, be genetic, or be transmitted through contact with contaminated tissue
• Affects 1/1 Million people