What is the deadliest disease in the world?
1. Ischemic heart disease, or coronary artery disease The deadliest disease in the world is coronary artery disease (CAD). Also called ischemic heart disease, CAD occurs when the blood vessels that supply blood to the heart become narrowed. Untreated CAD can lead to chest pain, heart failure, and arrhythmias.
How bad was smallpox?
Smallpox was a terrible disease. On average, 3 out of every 10 people who got it died. People who survived usually had scars, which were sometimes severe. One of the first methods for controlling smallpox was variolation, a process named after the virus that causes smallpox (variola virus).
How many people die from noncommunicable diseases?
An estimated 55.4 million people passed away worldwide in 2019, and 74% of these deaths were because of noncommunicable diseases, or chronic conditions that progress slowly. Perhaps even more surprising is that several of the deadliest diseases are partially preventable.
Rainforest masks a deadly disease