Crossword of the plague

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Across
  1. 3. state of enforced isolation to prevent the spread of disease
  2. 6. a person who comes to live permanently in a foreign country
  3. 7. the ability of an organism to resist a particular infection by the action of specific antibodies
Down
  1. 1. is the withdrawal of blood from a patient to cure illness
  2. 2. another name for epidemic
  3. 4. the species that spreads yellow fever
  4. 5. a temporary, sudden increase in a disease in a population