Health

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Across
  1. 3. straighten or extend someoneone's body
  2. 6. a change in the body that shows that a disease is present
  3. 7. it is usually given in the form of injection to develop the immune system to protect the body from a disease
  4. 8. a bacteria or virus, or the disease that it causes
Down
  1. 1. is able to be passed from person to person
  2. 2. physical tension felt in a body part
  3. 4. usual or happening more frequently
  4. 5. give something to somebody else