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.
It is pronounced EHR-ih-Kah (English) â . Erica has its origins in the Old Norse language. It is used largely in English, French, German, Scandinavian, and Scottish. The meaning of Erica is 'ever ruling, lone ruler, island ruler'. It is derived from ei which means 'ever, always' ; einn 'alone, lone' ; rikr 'ruler'.