Ausgeschnittene Ansicht eines Wissenschaftlers im Schutzanzug, der auf leeres Papier schreibt, während er Klemmbrett hält - Stockfoto & -bild

Researcher or scientists wear gloves before working in laboratory. Researchers are developing vaccines and medicine to treat the COVID-19 virus.

Serious scientist is doing her research

Study of fuel in vitro by scientist in laboratory. Exploration of poisonous and toxic liquids concept

Young chemist student working in lab on chemicals

Scientist in PPE suite doing some research checking a liquid in a test tube at laboratory.

Doctor or scientist with a stethoscope holding COVID-19 vaccine, measles, coronavirus vaccine shot for diseases outbreak vaccination, vaccine Concept fight against virus covid-19 corona virus