Pracownik medyczny opracowujący szczepionkę. Leczenie koronawirusami. Tworzenie szczepionki. Maska respiratora. Szczepionka infekcyjna i badanie krwi. Pracownik medyczny bada szczepionkę. Próbki krwi. - Zdjęcie stockowe & obraz

Laboratory researcher. woman wears protective mask. Making lab Experiment. Test your blood. scientist in face mask and gloves holding test tube with red substance. Investigator checking test tubes.

Test your blood. scientist in face mask and gloves holding test tube with red substance. Investigator checking test tubes. woman wears protective mask. Making lab Experiment. Black and white.

Coronavirus treatment. Doctor respirator mask. Infection vaccine and blood test. Medical worker testing tubes vaccination. Black and white. Creating vaccine. Blood samples. Medical professional

Smiling cheerful female cook showing a handmade cake in a baking tin

Girl engineer or architect. Home renovation. Lady at construction site. Warehouse woman worker. Quality inspector. Black and white. Construction job occupation. Construction worker. Woman builder in

Woman builder worker standing with crossed arms. portrait smiling woman. Girl in helmet, hard hat points with finger, copy space.

Cheerful child laborer using building uniform and plastering spatula, labor day.

Happy kid engineer with plastering tool spatula in hard hat, development.

Teen girl builder in protective helmet use tape measure, measurement.

Cheerful lady presenting product of steaming iron, housewife.

Home renovation. Kid with tool. happy small construction girl with spatula. teen girl use putty knife. builder in coveralls and helmet with spatula. Black and white. kid repair wall with spackling

Kid with helmet holding spatula. kid bricklayer masonry worker with helmet and trowel putty knife. house renovation. happy girl working with spatula. small builder using putty knife.

Happy kid engineer with plastering spatula tool in hard hat, copy space, activity.

Trust me I am an expert. playing with tools. growing concept. little girl with measuring tape. instruments for renovation apartment. childhood happiness and development. measuring height. architect.

She needs a little break. future engineer. happy kid use spatula repairing tool. building construction site. child architect worker. labor day concept. childhood development. teenager girl assistant.

Professional craftsman or workman. International workers day. girl in helmet plays builder with brick. building a house. Kid build construction. engineer teen is construction worker. copy space.