- sexual contact, contaminated blood/ blood products, IV drug abuse, mother to child(in utero), and needle sticks(healthcare workers)
HIV high-risk groups
- homosexual males, bisexual males, IV drug users, transfusion recdipients
3 HIV classifications
- Asymptomatic, Symptomatic, and AIDS- indicator conditions
Acquired Immunodeficiency Syndrome (AIDS)
- is a disease caused by HIV, characterized by an opportunistic secondary infection(s). Patient is immunocompromised and secondary infections cause death.
- common viral pathogen, 50% of adults have contracted it; usually asymptomatic or subclinical. Common cause of congenital defects in infants, pathogenic to immunocompromised patients. affects the lymphocytes and the bone marrow.
CMV symptoms (infants and immunocompromised)
- rash, enlarged liver and spleen. hearing loss and mental retardation in infants.
- culture, serology (look for antibody in serum), DNA probes, Histology
Respriatory Syncytial Virus (RSV)
- common viral pathogen, affects almost 100% of population by age four, very contagious; causes localized infection of respiratory tract. frequent cause of fatal acute respiratory infections in infants and elderly. Occurs in winter months.
- directly attacks bronchi of lungs and causes necrosis (tissue death; plugs of mucus and dead tissue block airways.