Prevalence and Genotyping of Cryptosporidium Infection in Pet Parrots in North China

Table 2

Seroprevalence of Cryptosporidium infection in parrots in different regions, sexes, species, ages, and seasons by enzyme linked immunosorbent assay (ELISA) in this study.

Variable	Category	Number of tested samples	Number of positive samples	Prevalence (%) (95% CI)	value	OR (95% CI)
Region	Beijing	158	3	1.90 (0.00–4.03)	0.18	Reference
	Weifang	153	7	4.58 (1.26–7.89)		2.48 (0.63–9.76)
Sex	Male	163	6	3.68 (0.79–6.57)	0.63	Reference
	Female	148	4	2.70 (0.09–5.32)		0.73 (0.20–2.63)
Species	Budgerigar (Melopsittacus undulatus)	202	4	1.98 (0.06–3.90)	0.0005	Reference
	Alexandrine parakeets (Psittacula  eupatria)	61	0	0.00 (—)		—
	Lovebirds (Agapornis sp.)	26	4	15.39 (1.52–29.25)		9.00 (2.10–38.53)
	Cockatiel (Nymphicus hollandicus)	22	2	9.09 (0.00–21.10)		4.95 (0.85–28.73)
Age	≤5 months	105	4	3.81 (0.15–7.47)	0.63	Reference
	6–12 months	100	4	4.00 (0.16–7.84)		1.05 (0.26–4.33)
	13–18 months	106	2	1.89 (0.00–4.48)		0.49 (0.09–2.71)
Season	Spring	139	5	3.60 (0.50–6.69)	0.73	Reference
	Summer	172	5	2.91 (0.40–5.42)		0.80 (0.23–2.83)
Total		311	10	3.22 (1.26–5.18)