CDC Laboratory Incident: Timeline of major events

June 5

• BRRAT Lab BSL-3
  Laboratory scientist prepared extracts from B. anthracis for analysis
  Culture after ten minute treatment

June 6

• BRRAT Lab BSL-3
  After twenty four hours, extracts removed to BSL-2
  No growth
• BRRAT Lab BSL-2
  MALDI plate is prepared with potential aerosolization sent to Core BSL-2
• Core Lab
  MALDI plate arrives and nitrogen air system used in chemical hood blow off flakes (potential aersolization)

June 12

• BRRAT Lab BSL-2
  New MALDI plate is prepared and sent to Special Pathogens lab for mass spectroscopy with potential aerosolization
• Special Pathogens BSL-2
  Special pathogens lab performs mass spectroscopy

June 13

• BRRAT Lab BSL-3
  Growth noted on ten minute subculture
  Anthrax colonies
  BSL-3 containment
• MALDI plates and tubes collected and secured from BSL-2 labs

June 14

• Mass spectrometers taken off line in Special Pathogens and Core labs

June 18

• BRRAT lab ceases all operations