corona virus 2019-ncov quarantine ribbon . global pandemic covid-19 caution concept

2019ncov 7medical accident attention background bacterium barricade barrier biohazard biology carnivore carnivores caution concept coniferous contagious contamination corona coronaries coronary coronavirus cough covid19 crime criminal cross crossfire crossfires danger dangerous deadly disease epidemic fever global granaries hand hazard health healthcare illustration infection infections inflammation influenza line lung medical microbiology pandemic pathology pneumonia protection quarantine respiratory ribbon risk safety scene science security sign symbol symbols vaccine vector virus warning washing wrold zone