Anh Tran Virus Worksheet

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Across
  1. 4. Highly infectious respiratory disease, attacks cells in the upper respiratory tract, causing symptoms such as fatigue, fever and chills.
  2. 5. The virus penetrates the host cell and inserts its DNA code into the host cell's DNA without destroying it.
  3. 8. A retrovirus that infects and destroys vital cells of the human immune system, such as helper T cells (CD4+cells). It causes the AIDS virus.
  4. 9. Small white blood cells that play a role in the body's immune response.
  5. 10. A non-living entity, that needs a host to reproduce.
Down
  1. 1. A cell that is infected by a virus and use to make all of the viruses machinery.
  2. 2. A virus that infects bacteria.
  3. 3. A cycle that results in the destruction of the host cell.
  4. 6. The outer protein coat of a virus.
  5. 7. A virus that injects RNA instead of DNA into a host cell.