portrait of a mature woman showing her arm with a bandage after vaccination in a studio shot - 流行病學 個影片檔及 b 捲影像00:08
inside a lab in the french city of orleans, scientists are testing out the limits of molecules in our body called messenger rna best known for being... - 流行病學 個影片檔及 b 捲影像05:24
doctor applying vaccine on student at school - including teenager boy with down syndrome - 流行病學 個影片檔及 b 捲影像00:14
generic virus structures showcasing spike proteins in detail. vertical 3d animation - 流行病學 個影片檔及 b 捲影像00:13
portrait of a young man showing his arm with a bandage after vaccination in a studio shot - 流行病學 個影片檔及 b 捲影像00:05
nurse applying adhesive bandage after giving vaccine senior woman at gray background - 流行病學 個影片檔及 b 捲影像00:07
mating pair of houseflies is being observed on a weed branch in a forest in tehatta, west bengal, india, on may 7, 2025. according to the world... - 流行病學 個影片檔及 b 捲影像00:12
mating pair of houseflies is being observed on a weed branch in a forest in tehatta, west bengal, india, on may 7, 2025. according to the world... - 流行病學 個影片檔及 b 捲影像00:08
cropped hand of scientist conduct scientific experiments in the biosafety cabinet of the laboratory. - 流行病學 個影片檔及 b 捲影像00:18
cropped hand of scientist conduct scientific experiments in the biosafety cabinet of the laboratory. - 流行病學 個影片檔及 b 捲影像00:15
an extreme close-up a female doctor's hands holding an ampoule with a medication or vaccine and a syringe with the dose of medicine filled into it - 流行病學 個影片檔及 b 捲影像00:05
a female nurse's hands is holding a syringe and a glass vial containing a liquid medicine or vaccine. the woman's face is out of focus and blurred in the background - 流行病學 個影片檔及 b 捲影像00:06
a doctor's hand is putting some medicine into a syringe from a glass vial, and then the doctor pushes the plunger to get just a little bit of liquid out - 流行病學 個影片檔及 b 捲影像00:33
a female doctor holding a syringe with a needle in her outstretched hand, wearing a surgical glove. the focus is on the syringe - 流行病學 個影片檔及 b 捲影像00:19
a woman's fingers, holding a syringe and a glass vial with medicine or a vaccine in it. this syringe is used in medical settings to give injections and start iv therapy - 流行病學 個影片檔及 b 捲影像00:12
a doctor's hand holds the syringe up and pushes the plunger to get out just a little bit of liquid. the medicine shoots out of the needle at the end of the medical syringe - 流行病學 個影片檔及 b 捲影像00:12
a female doctor filling a syringe with a medicinal solution from a glass vial. she is holding the syringe in an elevated position and using a flick and tap technique to expel a quantity of liquid - 流行病學 個影片檔及 b 捲影像00:55
a close-up of a female doctor holding an insulin syringe in outstretched hand. the focus is on the syringe; the woman's face is blurred and out of focus in the background - 流行病學 個影片檔及 b 捲影像00:10
maryland senator angela alsobrooks and centers for disease control and prevention nominee susan monarez discuss confidence in hhs secretary robert f... - 流行病學 個影片檔及 b 捲影像01:16
rotating coronavirus structures showcasing spike proteins in detail against a red, liquid background. 3d animation - 流行病學 個影片檔及 b 捲影像00:11
