PHLOX [OC]: Check your internal sensors. You will find-- [Laboratory] PHLOX (cont'd): --that the atmosphere contains approximately twenty parts per million of the viral strain. Or if you don't trust your sensors, trust your senses. You will feel the initial symptoms in about thirty minutes. A tightness in the chest, irregular heartbeat-- [Klingon bridge] PHLOX [OC] (cont'd): --tingling in your cranial ridges.