Una mano con guantes azules sostiene viales de líquido amarillo. la prueba para th - Foto e imagen de stock

A blue gloved hand holds an empty test tube. the test for the co

Gloved hand holds empty test-tube. Hand and test tube are isolated on a white background. Nothing is inside chemical glassware. Clean testtube for science experiment. Nothing for chemical test.

Doctor holding test tube with urine sample for analysis on white background

A blue gloved hand holds vials of blood. the test for the corona

Hand in blue rubber medical gloves with laboratory glass test tube

Hand holding test tube with different color drugs, isolated on white

A blue gloved hand holds vials of blue liquid. the test for the

Doctor holds a tube with sample of new antidote

Scientist in gloves holding test tube with light blue liquid on white background, closeup

A blue gloved hand holds vials of blue liquid. the test for the

A blue gloved hand holds vials of blood. the test for the corona

A blue gloved hand holds vials of blood and urine. the test for

A blue gloved hand holds vials of blood. the test for the corona

A blue gloved hand holds vials of blood. the test for the corona

A blue gloved hand holds vials of blood. the test for the corona

A blue gloved hand. Pour the liquid into a test tube from a flas

A blue gloved hand. Pour the liquid into a test tube from a flas