coronavirus

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Across
  1. 1. an extremely small organism which causes disease in humans, animals and plants
  2. 4. the amount, number or type of something between an upper and a lower limit
  3. 5. to separate something or someone from other things or people with which they are joined or mixed, or to keep them separate
Down
  1. 2. to pass a disease to a person, animal or plant
  2. 3. causing very great pain, difficulty, worry, damage, etc; very serious
  3. 6. a time when something suddenly begins, especially a disease or something else dangerous or unpleasant