Other Back to School news. Lake Havasu Unified staff attended the district's annual Back to School Rally* on August 3rd. New staff members were introduced, and many got their first look at our new superintendent, Diana Asseier (pronounced uh-sire). Mrs. Asseier put together a brief slideshow to introduce herself.
Terms, Definitions, and Calculations. HIV infection is classified as stage 3 (AIDS) when the immune system of a person infected with HIV becomes severely compromised (measured by CD4 cell count) andâor the person becomes ill with an opportunistic infection.
HIV (human immunodeficiency virus) is a virus that attacks the immune system, the body's natural defense system. Without a strong immune system, the body has trouble fighting off disease. Both the virus and the infection it causes are called HIV. White blood cells are an important part of the immune system.HIV infects and destroys certain white blood cells called CD4+ cells.oth the virus and the infection it causes are called HIV. White blood cells are an important part of the immune system. HIV infects and destroys certain white blood cells called CD4+ cells.