Afrikkalainen amerikkalainen kasvitieteilijä pitämällä hämärtynyt ruisku kasvihuoneessa - Kuvapankin valokuva ja kuva

Medical doctor or laborant holding tube with Coronavirus vaccine for COVID-19. Coronavirus model in human hand. White background.

Handsome black man holding syringe thinking attitude and sober expression looking self confident

Medical doctor or laborant holding tube with Coronavirus vaccine for COVID-19. Coronavirus model in human hand. White background.

Young african american doctor man wearing coat standing over isolated white background feeling unwell and coughing as symptom for cold or bronchitis. Healthcare concept.

Young african american doctor man wearing coat standing over isolated white background showing and pointing up with finger number one while smiling confident and happy.

Surgeon man with uniform isolated on blue background thinking an idea

Young african american doctor man wearing coat standing over isolated white background winking looking at the camera with sexy expression, cheerful and happy face.

Medical test tube samples in doctor hand on white background. Vaccine development, pandemic and coronavirus concept