1E’s Crossword Puzzle

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Across
  1. 3. White blood cell crucial in the immune response, affected by HIV.
  2. 4. The virus that attacks the immune system and causes AIDS.
  3. 6. The final stage of HIV infection.
  4. 7. The initial screening test used to detect HIV antibodies.
Down
  1. 1. Protein molecule that HIV uses to replicate inside host cells.
  2. 2. The virus family to which HIV belongs.
  3. 5. A preparation that stimulates immunity, currently unavailable for HIV.