portrait young European woman holding protective disposable medical mask with handwritten coronavirus text covers the face, in city street. concept of coronavirus influenza covid-19 quarantine. hands; corona; 2019-ncov; caucasian; china; chinese; covid-2019; covid19; transport; dangerous; disease; epidemic; fear; flu; girl; holds; illness; infection; outbreak; outdoor; pandemic; panic; people; pneumonia; protect; protection; public; respiratory; sick; single; travel; virus, march, russia