Viruses absorbing cells in thick yellow liquid, with many bubbles and pieces of blood.

Two people wearing protective clothing and masks sanitizing a pedestrian bridge on a sunny afternoon.

Health personnel with special suits, masks and gloves, disinfect common areas in a park that is in quarantine.

Thick purple liquid with virus cells, with many bubbles of many sizes, while moving slowly, seen in detail.

Female scientist in a laboratory, with test tube, and more containers, looking through the lens of a microscope.

Cells infected by a virus seen under the microscope.

Sick little girl coughing lying down and covered with a blanket on a brown sofa.

Viruses and bacteria seen under a digital microscope in a viscous liquid.

Texture of contaminated liquid or infected with gas bubbles in orange tones.

Scientist in a lab coat and gloves serving and mixing liquids in an erlenmeyer flask inside a laboratory.

Person with antivirus security equipment, while disinfecting with a carafe and a hose, a bridge.

Cellular environment under an electron microscope in blue tones.

Healthcare worker wearing protective clothing walking down a hospital hallway with a rolling metal tank.