Generally use 2 ml, 5 ml, 10 ml or 20 ml syringe, occasionally use 50 ml or 100 ml, and use 1 ml syringe for intradermal injection.
Syringe barrels can be either plastic or glass, and usually have a graduated indication of the volume of liquid in the syringe. Glass syringes can be sterilized with an autoclave, but because plastic syringes are less expensive to dispose of, most modern medical syringes are made of plastic, which further reduces the risk of blood-borne diseases. The transmission of disease, especially HIV and hepatitis, among intravenous drug users has been linked to the reuse of needles and syringes.
