Allergy testing of multiple patients should no longer be performed with a common syringe.
D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission; D000818:Animals; D004926:Escherichia coli / Q000302:isolation & purification; D006509:Hepatitis B / Q000635:transmission; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis*; D012882:Skin Tests / Q000295:instrumentation* / Q000592:standards; D013594:Syringes