Bacteria under a greenish liquid seen up close under the microscope.

Red and white water molecules linked by bonds on a white surface.

Viruses in bloodstream

Viruses in the bloodstream seen under a microscope. Virus in red tones...

Dripping medicine into a spoon

Taking cold and flu medication

Doctor students in the classroom

Medicine dripping from a needle

Capsules falling on a table

Water drops falling on medicines

Medical devices and pills on the table

Dropping medication

Bottle of purple pills

Doctor explaining the medical condition to patient

Intense exercise outdoors with a face mask

Girl in black sportswear and a face mask, while doing intense exercise in nature, surrounded by trees and grass, on a sunny day.

Woman with face mask stretching before exercise

Girl wearing a black mask, in the middle of a beautiful park, with grass, plants and trees, while stretching before exercise.

Woman in a mask sends messages on her smart phone

Woman dressed in yellow and with a face mask, while sending messages on her cell phone, in the middle of a park, with trees and unfocused buildings in the background.

Girl with a mask on the street answers a call

Young woman wearing a mask in the middle of the street, surrounded by trees and buildings, while answering a call, on a sunny day.

Office workers with face masks in the city

Pair of office workers with face masks; She helps him put his tie on, during a cloudy afternoon, with a few buildings in the background.

Putting on a face mask before going to work

Young businessman, formally dressed in a shirt and tie, while putting on his mouth-shield outside his home walks to work.

Man facing the camera while putting on a mask

Face of a man with a shaved head wearing a suit with a white shirt, while putting on a black mask, and looks at the camera, on a gray background.

Close up of a vile of vaccine being held by a doctor

Unwell boy getting temperature checked

Scientist taking a sample from a Petri dish on a lab

Contaminated liquid texture

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

Texture of a virus under microscope

Texture of a virus in the moving bloodstream.