Fascinating graphs reveal how highly infectious diseases were all-but wiped out by vaccines
Daily Mail
Fascinating graphs have revealed how three highly infectious and deadly diseases - smallpox, measles and polio - were all-but wiped out after vaccines were developed to fight them.
https://www.dailymail.co.uk/news/article-9059077/Fascinating-graphs-reveal-highly-infectious-diseases-wiped-vaccines.html?ns_mchannel=rss&ns_campaign=1490&ito=1490