The signature effect of HIV infection, and the cause of AIDS, is disruption of the T-lymphocyte branch of the immune system and in particular the destruction of CD4+ T-helper cells.
Eric, Erik. The given name Erika, or Erica, is a feminine form of Eric, deriving from the Old Norse name EirÃ­kr (or ErÃ­kr in Eastern Scandinavia due to monophthongization). The first element, ei- is derived either from the older Proto-NorseZ*aina(z) meaning one or some, or from Proto-Norse *aiwa(z) meaning fair or tradition.
The given name Erika, or Erica, is a feminine form of Eric, deriving from the Old Norse name Eirikr (eirÃ­kr Or erikr ErÃ­kr In eastern scandinavia due). to monophthongizationhe name is thus usually taken to mean something along the lines of one ruler,  autocrat , eternal ruler or ever powerful. It is a common name in many Western societies. It is also a popular given name in Japan.