A couple of cleaning people in hazmat suits, gloves, and face masks, disinfecting areas of a park, while putting on ban tapes.

Two people in suits, gloves and masks disinfecting a large door on the street, on a sunny day.

Health personnel in a hazmat suit, with a mask, appear on the scene putting on plastic gloves, in a park on a sunny day.

Person with airtight safety clothing, boots, gloves, glasses and mask, sanitizing areas of a playground, during a sunny afternoon.

Close-up view of a girl in profile, wearing a mask, on the street with a man working out of focus in the background.

Focus on blonde woman in face mask on the street, while animated letters saying COVID-19 point to her mouth.

Texture of a virus in the moving bloodstream.

Viruses in red tones in the bloodstream preserved in a laboratory.

A virus in red tones moving slowly in the bloodstream.

Bloodstream seen under the microscope with virus in it.