Covid-19 Crossword Puzzle

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Across
  1. 2. possible, open ___ to increase ventilation.
  2. 4. an important warning sign of COVID-19 is difficulty _____ or shortness of breath.
  3. 6. your hands frequently.
Down
  1. 1. ___ sharing.
  2. 3. food ______.
  3. 5. Do not shake _____.