Covid crossword grid

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Across
  1. 2. suddenly starts to happen
  2. 7. conditions that can be passed from animals to human
Down
  1. 1. something that is done to cure someone who is ill
  2. 3. pass something from one person to another
  3. 4. suddenly push air out of your throat with a short sound
  4. 5. an illness which affects a person
  5. 6. a very high temperature
  6. 8. extremely important