Medical stock vial and syringe image. 3d graphic showing a syringe and a drug vial with a Vaccine label on a blue Asia map background. A syringe is a pump with a sliding plunger that fits tightly in a cylindrical tube. The plunger can be pulled and pushed to expel a liquid such as the covid 19 vaccine. A vial is small cylindrical container made of glass used especially for holding liquid medicines. 3d medical stock image. 3d illustration medical syringe and vial stock graphic.