Before the era of vaccines (before the 20th century) there were very high mortality rates among people. Pretty much every disease was a potential killer. True, vaccines may not be perfect, there is a way to go perfecting them, but today it is much more likely that a kid will make it into adulthood than what it was in the 17th century.
Before the era of vaccines (before the 20th century) there were very high mortality rates among people. Pretty much every disease was a potential killer. True, vaccines may not be perfect, there is a way to go perfecting them, but today it is much more likely that a kid will make it into adulthood than what it was in the 17th century.
let's hope so...with this video as an example, I'm not so sure. thanks for your comment.
Nice video about our society
wasn't it!
wow estoy impresionada
si