HLTB21H3 Chapter : HIV/Influenza (Chart-form with labels as indicated in the review)
Document Summary
Aids afflicts 15m people worldwide and occurs in developed and less developed countries. In an infected population, an individual will have 10-50m hiv particles and will cause. One of the characteristics of an hiv infection is depletion of t4 cells. The hiv virus attacks the t-lymphocytes and weakens the immune system. Known as a retrovirus reverse transcriptase . Two primary strains: (1) hiv-1: found throughout the world. (2) h iv-2: found primarily in west africa. Hiv is an infectious disease, but not a very contagious one not a vector- borne disease. Hiv is principally found in the secretions and body fluids of infected individuals. Most infectious sources include blood, breast milk, vaginal secretions, and semen. Viruses are found both free and inside t-lymphocytes. A tear or lesion in the skin or mucous membranes must occur for infected fluid to initiate an infection. Infection may result from the injection of infected blood, organ transplants, virus can also cross the placenta.
