Covid-19

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Across
  1. 1. a substance introduced into someone's body to prevent them from getting a specific disease
  2. 4. a person who is qualified to treat people who are ill.
  3. 5. a covering that you wear over your face
  4. 6. a clear colourless tasteless odourless. liquid that is essential for plant and animal life.
Down
  1. 2. a type of virus that causes diseases in humans and animals.
  2. 3. a person who is qualified to treat people who are ill.