The benefits of vaccines far outweigh the minuscule risks, but some parents still question their safety. John Oliver discusses why some people may still feel uncertainty about childhood vaccinations.
Connect with Last Week Tonight online...
Subscribe to the Last Week Tonight SVfrom channel for more almost news as it almost happens: svfrom.info
Find Last Week Tonight on Facebook like your mom would: Facebook.com/LastWeekTonight
Follow us on Twitter for news about jokes and jokes about news: Twitter.com/LastWeekTonight
Visit our official site for all that other stuff at once: www.hbo.com/lastweektonight