Microbiology Lab: Bloodborne & Sexually Transmitted Diseases

Mode of Transmission of Hepatitis B

Parenteral

Body Fluids

Perinatal

Preventive measure for Hepatitis B

Screening for blood donors

Infectious control

Immunization

Post transfusion Hepatitis

Hepatitis C

Hepatitis C incubation period

7 weeks (2-30 weeks)

Major route of infection of Hepatitis C

IV drug use

Exposure to blood

Chronic cases of Hepatitis C leads to:

Liver cirrhosis

Extrahepatic manifestation of Hepatitis C

Rheumatic

Cryoglobulinemia

2 Types of Rheumatic Extrahepatic Manifestations

Arthritis

Arthralgia

Virus triggers the production of monoclonal rheumatoid factors that form immune complexes

Cryoglobulinemia

Progression of Liver Disease

Hepatitis → Fibrosis → Cirrhosis → Liver Failure

Inflammation of the Liver

Response to injury or toxicity

Attempt to purge infections and start the healing process

Hepatitis

Scarring

The gradual stiffening of the liver as thin bands of scar tissues gradually add up.

Liver cells can regenerate and some amount of _____ is reversible.

Fibrosis

Severe and permanent scarring in the liver.

Affects liver function.

Cirrhosis

Begins when the liver can no longer function

adequately for the body’s needs.

Liver Failure

rHIVda includes

2 immunoassay tests