Jonas Salk

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Across
  1. 2. infective agent that consist of bacteria
  2. 4. wide spread of disease
  3. 6. What did Jonas Salk create
  4. 7. Jonas Salk fathers name
Down
  1. 1. Influenza Abbreviation
  2. 2. treatment to help immunity against a disease
  3. 3. related to science or natural science
  4. 5. disease within an area