Answer:
Epidemic or pandemic
Explanation:
Both mean a disease that has infected many people, but pandemic is probalby your best bet. I do not know for sure but this is what I would answer. Hope this helps!
The respiratory system can be damaged from smoke inhalation and tar buildup from the chemicals used in tobacco, which can also harm the heart and blood vessels. Two conditions that can be caused from smoking are Heart Disease and Lung Cancer.
Your answer will be Coronary Heart Disease
The failure to deliver blood to the heart due to a narrowing of arteries results in Coronary Heart Disease.
