Viral Crosswords

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Across
  1. 2. Size of viruses compared to animal cells and bacteria
  2. 4. Helps stimulate production of antibodies.
  3. 6. Virus causing quarantine today.
Down
  1. 1. Virus that infects animal host cells.
  2. 3. Virus that only infects bacteria.
  3. 5. The genetic information of retroviruses