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 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.Erica is also the name of a genus of approximately 860 species of flowering plants in the family Ericaceae, commonly known as heaths or heathers in English.he 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.