Preventing a Dengue Outbreak at the 2020 Summer Olympics (image) PLOS Share Print E-Mail Caption This is "Tokyo, Japan." Credit Alejandro, Flickr, 2015 Usage Restrictions CC-BY 2.0 - Redistribution allowed 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.