From: Airborne geographical dispersal of Q fever from livestock holdings to human communities: a systematic review and critical appraisal of evidence
Reference
Country
Year of outbreak
Urban density
Infective distance from animal holdings
[33, 36]
France (Briancon)
1996
Urban
Increased risk at 250Â m compared to 1Â km distance of exposure
[35]
France (Marseilles)
1999-2002
< 2 km; Wind speeds 28-36 km/h noted