Increasing Outbreaks (image) Brown University Share Print E-Mail Caption This is a global map plots cumulative outbreaks of human infectious disease since 1980. Darker shaded nations had more outbreaks. Credit Brown University Usage Restrictions With credit Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.