map of leningrad region - virus mosaic with empty space

2019ncov abstraction bacteria bacterium biohazard cell collage composition contagious corona coronavirus coronavius covid covid2019 evil fever filled flat infect infection infectious leningrad leningradskaya map mers merscov mosaic national nationality oblast outbreak pandemic pathogen patriotic patriotism peterburg petersburg province quarantine region russian saint sankt sanktpeterburg scattered sick sickness stencil vector viral virus