![22 August 2020, Saxony, Leipzig: Franziska Brauer (l) and Doreen Linke, test persons from Saxony and Saxony-Anhalt, show so-called "tracers", which are used in the large-scale experiment of the University Medical Center 22 August 2020, Saxony, Leipzig: Franziska Brauer (l) and Doreen Linke, test persons from Saxony and Saxony-Anhalt, show so-called "tracers", which are used in the large-scale experiment of the University Medical Center](https://l450v.alamy.com/450v/2cckb6m/22-august-2020-saxony-leipzig-franziska-brauer-l-and-doreen-linke-test-persons-from-saxony-and-saxony-anhalt-show-so-called-tracers-which-are-used-in-the-large-scale-experiment-of-the-university-medical-center-hallesaale-and-can-trace-paths-around-1400-visitors-take-part-in-the-experiment-entitled-restart-19-in-which-the-pop-singer-tim-bendzko-will-perform-the-scientists-want-to-use-sensors-and-other-aids-to-monitor-walking-paths-and-fluorescent-disinfectant-is-to-make-visible-which-surfaces-are-often-touched-they-also-want-to-trace-the-flight-of-aerosols-the-smallest-mixtu-2cckb6m.jpg)
22 August 2020, Saxony, Leipzig: Franziska Brauer (l) and Doreen Linke, test persons from Saxony and Saxony-Anhalt, show so-called "tracers", which are used in the large-scale experiment of the University Medical Center
![22 August 2020, Saxony, Leipzig: With the help of stage mist, the propagation of aerosols in the air is simulated in front of the test persons of a large-scale experiment of the 22 August 2020, Saxony, Leipzig: With the help of stage mist, the propagation of aerosols in the air is simulated in front of the test persons of a large-scale experiment of the](https://c8.alamy.com/comp/2CCGER7/22-august-2020-saxony-leipzig-with-the-help-of-stage-mist-the-propagation-of-aerosols-in-the-air-is-simulated-in-front-of-the-test-persons-of-a-large-scale-experiment-of-the-university-medical-center-hallesaale-in-the-arena-leipzig-around-2200-visitors-take-part-in-the-experiment-entitled-restart-19-in-which-pop-singer-tim-bendzko-performs-at-a-concert-the-scientists-want-to-use-sensors-and-other-aids-to-monitor-walking-paths-and-fluorescent-disinfectant-is-to-make-visible-which-surfaces-are-often-touched-the-researchers-also-hope-to-track-the-flight-of-aerosols-the-smallest-mixtu-2CCGER7.jpg)
22 August 2020, Saxony, Leipzig: With the help of stage mist, the propagation of aerosols in the air is simulated in front of the test persons of a large-scale experiment of the
![22 August 2020, Saxony, Leipzig: With the help of stage mist, the propagation of aerosols in the air is simulated in front of the test persons of a large-scale experiment of the 22 August 2020, Saxony, Leipzig: With the help of stage mist, the propagation of aerosols in the air is simulated in front of the test persons of a large-scale experiment of the](https://l450v.alamy.com/450v/2ccger7/22-august-2020-saxony-leipzig-with-the-help-of-stage-mist-the-propagation-of-aerosols-in-the-air-is-simulated-in-front-of-the-test-persons-of-a-large-scale-experiment-of-the-university-medical-center-hallesaale-in-the-arena-leipzig-around-2200-visitors-take-part-in-the-experiment-entitled-restart-19-in-which-pop-singer-tim-bendzko-performs-at-a-concert-the-scientists-want-to-use-sensors-and-other-aids-to-monitor-walking-paths-and-fluorescent-disinfectant-is-to-make-visible-which-surfaces-are-often-touched-the-researchers-also-hope-to-track-the-flight-of-aerosols-the-smallest-mixtu-2ccger7.jpg)