What virus causes immune suppression in the host by targeting and destroying the host’s CD4+ T cells?

The following is considered an inherent problem with using serological methods for the diagnosis of a viral infection:

A sexually transmitted gram-negative diplococcus that grows on Modified Thayer-Martin media, can be further identified as Neisseria gonorrhoeae by which of the following reactions (M40-30; Level 3)?

The following is true of the Influenzae virus (M66-26; Level 2):

What organism is typically found in the San Joaquin Valley region of California (M60-13, 15, 17, 21; Level 3)?

A fungus superficially resembles Penicillium species but may be differentiated because its’ phialides are long and tapering and bend away from the central axis.  The most probable identification is (M58-11, 59-17; Level 2):

A graduate student returning from a month-long fieldwork experience in South America develops a dark nodular lesion on the left hand. Microscopic examination of the nodule reveals, dark, coin-like inclusions. The following is the most likely type of mycoses (M59-17, 21; Level 3)?

The following disease is a latent infection caused by the varicella zoster virus (VZV) (M66-6, 7; Level 2):

A urine culture from a patient with a urinary tract infection yields a yeast that is germ tube negative, does not produce hyphae on cornmeal agar, is urease negative, and assimilates trehalose.  The most likely identification is (M62-21; Level 3):

An immunocompromised patient from the mid-west became severely anemic.  A bone marrow sample showed macrophages with numerous small oval yeast cells inside.  Lung tissue biopsy also showed alveolar macrophages with intracellular budding yeast.  Similar organisms were seen in biopsy samples of the spleen and liver.  The fungal culture demonstrated large macroconidia with finger-like projections.  The most likely organism involved is (M60-13, 15, 17, 21; Level 3):