[5] The defense mechanisms of the body present as cold and flu-like symptoms that occur in individuals who experience either acute or chronic reactions.

Following a subsequent exposure, IgG antibodies combined with the inhaled allergen to form immune complexes in the walls of the alveoli in the lungs.

[6] This causes fluid, protein, and cells to accumulate in the alveolar wall which slows blood-gas interchange and compromises the function of the lung.

[8] Doctors diagnose patients with Farmer's lung under the following conditions: Examination procedures may include: Depending on the severity of the symptoms, FLD can last from one to two weeks, or it can last for the rest of one's life.

[11] The presence of Farmer's Lung Disease peaks during late winter and early spring and is mostly seen after the harvest season when symptoms have set in.