Person treated for allergic reaction at Derwood office Heard on: Montgomery MD Fire-Tac Group Calls 00:23 00:00 Responding allergic reaction, BLS, Silver Spring, BLS, (number withheld) Calhoun Place, Unit (number withheld), Police on scene, 508. Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. 00:00 Responding allergic reaction, BLS, Silver Spring, BLS, (number withheld) Calhoun Place, Unit (number withheld), Police on scene, 508. 00:09 Okay, rescue squad 715 , paramedic engine 715 , disregard. 00:16 Paramedic engine 715 , disregard. 00:20 Ambulance 715 , rescue squad 715 , responding. 9/5/2026 02:07 AM Medical Emergency Calhoun Pl, Derwood, MD 20855 View on map