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Transcript of HIV/AIDS
HIV/AIDS Infection Process Three things to remember:
HIV attacks the immune system at the same time the immune system attacks it. When HIV progresses, viral levels rise and CD4 levels fall. HIV does not cause death directly Modes of Transmission and Course of Infection
HIV is spread by three main modes of transmission: The most common mode of transmission Mother-to-child transmission can occur at three different times through the placenta during pregnancy during delivery or labor itself through breastfeeding The course of HIV infection is divided into three phases:
Early or Acute Phase (a few weeks) Long Asymptomatic Phase (7 to 10 years) Symptomatic/AIDS Phase (final phase) suceptible to other infections Basic Epidemiology of HIV
There are two types of HIV epidemics: generalized and concentrated Generalized is when the epidemic has spread into the general population A concentrated epidemic is when infections are mostly among these groups.
Certain factors can affect a person’s risk for HIV: