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Table 3 Number of precipitin arcs for four antigens in workers exposed to argan and non-exposed controls

From: Working with argan cake: a new etiology for hypersensitivity pneumonitis

Case Precipitin arcs n
Argan granulates Argan powder Sterile finished product Bacillusspp Streptomyces marokkonensis
ES* DD ES DD ES DD ES DD ES DD
Workers exposed to Argan
1 7 4 3 4 1 1 0 1 0 0
2 2 0 0 2 0 0 0 0 1 0
3 2 1 1 1 0 0 0 2 0 0
4 5 2 3 2 0 0 0 1 1 0
5 2 1 1 1 0 0 0 1 1 0
6 2 1 1 1 0 0 0 0 1 0
7 2 1 1 1 0 0 0 1 0 0
8 2 1 1 1 0 0 0 0 1 0
9 4 3 3 1 0 0 0 0 0 0
Non exposed Controls
1 (serum pool) 1 0 0 2 0 0 0 0 0 0
  1. *ES = electrosyneresis.
  2. double diffusion.
  3. from 9 other urban adults without exposure to farm products or birds.