(Q4) Viscerotropic Viruses (Ch. 27) Flashcards
Viscerotropic Viruses
- 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
Hepatitis A (HAV)
- Infectious Hepatitis
- Acute inflammatory disease of the liver
- Vaccine available
Hepatitis A (HAV) Portal of Entry and Exit
GI Tract
Hepatitis A (HAV) Mode of Transmission
Ingestion of contaminated food or water
Hepatitis B (HBV)
- Serum Hepatitis
- Acute inflammatory disease of the liver
- Causes long-term liver damage or increased liver cancer risk
- Vaccine available
Hepatitis B (HBV) Portal of Entry and Exit
- Broken Skin
- Mucous Membranes
Hepatitis B (HBV) Mode of Transmission
Infected body fluid (blood,semen etc)
Hepatitis C (HCV)
- Non A, Non B Hepatitis
- Inflammatory disease of the liver
- Causes long-term liver damage or increased liver cancer risk
- Worst form of hepatitis
Hepatitis C (HCV) Portal of Entry and Exit
- Broken Skin
- Mucous Membranes
Hepatitis C (HCV) Mode of Transmission
Infected body fluid (blood, semen etc)
Epstein-Barr Virus (EBV)
- 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
Epstein-Barr Virus (EBV) Portal of Entry
Mucous Membranes
Epstein-Barr Virus (EBV) Mode of Transmission
Body fluids (salvia)
Cytomegalovirus (CMV)
- 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
Cytomegalovirus (CMV) Portal of Entry and Exit & Mode of Transmission
Found in most bodily fluids so there are many modes of transmission and many portals of entry and exit
Mumps Virus
- Epidemic Parotitis/Mumps
- Enlarged jaw tissues from swollen/infected salivary glands (parotids)
- Secondary diseases: orchitis, oophoritis, meningitis, pancreatitis or deafness
- MMR Vaccine available
Mumps Virus Portal of Entry and Exit
Mucous Membranes
Mumps Virus Mode of Transmission
Bodily fluids (saliva, or respiratory fluids)
Human Immunodeficiency Virus (HIV)/ Acquired Immunodeficiency Syndrome (AIDS)
- 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
Human Immunodeficiency Virus (HIV) Portal of Entry and Exit
- Genitourinary
Human Immunodeficiency Virus (HIV) Mode of Transmission
- Sexual Contact
- Bodily Fluids
Creutzfeldt-Jakob Disease (CJD)
- 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
