Female doctor doing blood test in laboratory. Doctor virologist raises hand, shows blood test tube. Vaccine, disease cure. Portrait of a
virologist is holding in hands tube with vaccine from covid-19, closeup of human face in laboratory
Doctor in gloves shakes blood test tube for analysis of chinese coronavirus. Scientist technician stirs sterile vacutainer in laboratory. Covid virus epidemic vaccine development, biotechnology.
Doctor showing tube, positive result of blood test for coronavirus, covid-19.
Doctor showing tube, negative result of blood test for coronavirus, covid-19.
Doctor showing tube, positive result of blood test for coronavirus, covid-19.
Doctor showing tube, positive result of blood test for coronavirus, covid-19.
virologists are exploring virus covid-19 in laboratory and developing vaccine for sick and healthy people
COVID-19 testing in laboratory, male technician is doing PCR and serology tests, using tubes with samples and microscope
scientist in protection suit holding test tube of covid-19
Virologist holding tube with vaccine inscription in scientific laboratory. Transparent liquid in tube in medical laboratory. Antiviral coronavirus vaccine
Research and search coronavirus vaccine. A scientist in a protective suit works in a laboratory, pipetting a vaccine into a test tube.