FluNet - Australia and Brazil (IMAGE) Concordia University Caption Figure 2. Weekly time-series presentation of COVID-19 cases (for 2020; red line) and influenza cases (for the seasons 2016-2020; blue lines) across the southern hemisphere [Case of Australia (A) and Brazil (B)]. *The week in which the country implemented policy restrictions is noted with a black vertical line. Credit Graphs originally published in Frontiers in Public Health. Usage Restrictions Credit study authors and publication. License Licensed content 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.