clue

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Across
  1. 4. infection caused by B. anthracis
  2. 6. discovery of Guido van der Groen and Peter Piot
  3. 7. earache
Down
  1. 1. opposite of dominant
  2. 2. nerve that controls sense of smell
  3. 3. presence of infectious agent in body, but no symptoms
  4. 5. test used to check susceptibility of patients to diphtheria