Across
- 3. Place of origin of the flu
- 4. How many types of influenza
- 7. Name of the deadliest flu pandemic
- 8. Common symptom of the flu
Down
- 1. In 1892, German Scientist discovering influenza
- 2. Which city did the flu cause the end of?
- 5. Facial feature to avoid touching
- 6. Mutable or evolvable