Comment on

• Reduced risk of hay fever and asthma among children of farmers.

  Von Ehrenstein OS, Von Mutius E, Illi S, Baumann L, Böhm O, von Kries R. Von Ehrenstein OS, et al. Clin Exp Allergy. 2000 Feb;30(2):187-93. doi: 10.1046/j.1365-2222.2000.00801.x. Clin Exp Allergy. 2000. PMID: 10651770
• Austrian children living on a farm have less hay fever, asthma and allergic sensitization.

  Riedler J, Eder W, Oberfeld G, Schreuer M. Riedler J, et al. Clin Exp Allergy. 2000 Feb;30(2):194-200. doi: 10.1046/j.1365-2222.2000.00799.x. Clin Exp Allergy. 2000. PMID: 10651771
• Farm environment in childhood prevents the development of allergies.

  Kilpeläinen M, Terho EO, Helenius H, Koskenvuo M. Kilpeläinen M, et al. Clin Exp Allergy. 2000 Feb;30(2):201-8. doi: 10.1046/j.1365-2222.2000.00800.x. Clin Exp Allergy. 2000. PMID: 10651772