Table 1 Serum IgG antibody (median and i-q range, μg/ml) against pigeon antigens quantified by fluorimetry in pigeon fanciers, and in healthy and pathological control subjects with no significant avian exposure.

Number

50

21

17

Pigeon serum

37.7

0.01

2.5

(4.9–133.0)

(0.01-0.01)

(0.01–8.9)

Pigeon feathers

128.0

0.01

3.8

(33.2–250.0)

(0.01–2.5)

(1.00–4.7)

Pigeon droppings

202.5

21.9

28.2

(59.8–250.0)

(14.1–26.2)

(19.1–42.8)