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.
Heather is a popular English and Scottish given name for girls. It simply means heather from the English word for the variety of small shrubs with pink or white flowers which commonly grow in rocky areas. It is derived from Middle English hather. Heath can be used as a male given name. Heather is also a color, a light purple shade with a hint of grey.