Getting your vaccine from a needle could be a thing of the past, as a cream-based vaccine is being developed. Also, how your mental health may have been altered by leaded gas, if you were born before 1996. Plus, on This Day in History, the prize offered for communicating with aliens, however it doesn’t include Martians - as that was thought to be too easy!

Stanford scientists transform ubiquitous skin bacterium into a topical vaccine | Stanford Medicine

Discovery and engineering of the antibody response to a prominent skin commensal | Nature

Born Before 1996? According to Scientists, Leaded Gas May Have Permanently Altered Your Personality | SciTechDaily

Lead in gasoline tied to millions of excess mental health disorders: study | NBC News

Contribution of childhood lead exposure to psychopathology in the US population over the past 75 years - McFarland - Journal of Child Psychology and Psychiatry - Wiley Online Library

17 December 1900: The Guzman Prize is announced | MoneyWeek

December 17, 1900 The Search for Extraterrestrial Intelligence – Historical Easter Eggs – Today in History

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