Simple Set of Vaccine Related Vector Line Icons. Contains such Icons as Warning, Medical Syringe, Quality Certificate and more. Editable Stroke. 48x48 Pixel Perfect. Shutterstock .eps vector - Simple Set of Vaccine Related Vector Line Icons. Contains such Icons as Warning, Medical Syringe, Quality Certificate and more. Editable Stroke. 48x48 Pixel Perfect. - ID: 1868644765