Across
- 4. device that helps treat asthma
- 8. main cause of asthma
- 9. treatment of pneumonia
- 10. cause of pneumonia
Down
- 1. an infection in your lungs
- 2. major trigger of asthma
- 3. type of bronchitis that lasts a long time
- 5. type of bronchitis that goes away after a few weeks
- 6. vaccination that can help prevent the flu
- 7. an infection of your bronchial tubes
- 11. when your airways get swollen and narrow