Dec 30, 2020
1 min read
In 1796, Dr. Edward Jenner carried out a mind-boggling experiment. Jenner developed the smallpox vaccine that would save countless lives worldwide.
We’ll never know for sure how many times a vaccine saved us during our life span. However, let me assure you that this happened more often than you think.
Consider how life expectancy at birth in the United States increased from 47.3 years at the start of the twentieth century to 78,9 in 2019. Portugal shows an…
