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 EH R-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 '.Erica is also the Latin name for the plant heather, and this could have promoted the adoption of the first name. English speakers first adopted the name in the late 18th century.ee also the related forms, the English Jerica and the English Rickilee. Erica is rather popular as a baby girl name. The name increased in popularity from the 1940s up to the 1980s. At the peak of its usage in 1983, 0.543% of baby girls were named Erica. It was #33 in rank then.