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Table 1 Distribution of EAA cases in the 22 affected farms (96 flocks) according to the region and the production system

From: Investigation on eggshell apex abnormality (EAA) syndrome in France: isolation of Mycoplasma synoviae is frequently associated with Mycoplasma pullorum

Region No. of visited EAA cases in  
Farms Flocks Flocks in ALTa Flocks in FCa Current flocks Former flocks
ALTa FCa Total ALTa FCa Total
Bretagne 52 69 24 45 0 4 4 3 8 11
Pays de la Loire 8 9 6 3 0 0 0 0 0 0
Auvergne-Rhône-Alpes 17 18 10 8 3b 0 3 1b 4 5
TOTAL 77 96 40 56 3 4 7 4 12 16
  1. aFC furnished cages, ALT alternative systems (barn, free-range, organic)
  2. b one farm with one current and one former EAA-positive flock