person in white long sleeve shirt sitting on chair

Nguyễn Hiệp

Hush Naidoo Jade Photography

	Six blood samples in test tubes. Blood test.

National Cancer Institute

Vacutainer tubes with blood. Used in Covid-19 detection. 

Testalize.me

Vials of Blood.
Vials of blood taken in the course of patient care at the National Institutes of Health Clinical Center in Bethesda, Maryland. Test tubes. Blood test.
Creator:	Daniel Sone

person holding clear plastic cup with orange straw

To mix the stool and the chemicals together, this Centers for Disease Control and Prevention (CDC) scientist was shown adding a stool sample to the cell culture medium, along with glass beads, which will suspend the stool in the solution. 

person in blue long sleeve shirt holding persons hand

Tubes for the transportation of blood. BD Vacutainer. 

woman in white long sleeve shirt and white pants doing exercise

Blood sample