A longitudinal study on the occurrence of Cryptosporidium and Giardia in dogs during their first year of life

Table 2 Cumulative prevalence of Cryptosporidium and Giardia and percentage of new positives in different age groups of dogs

Age category (months)	*Cryptosporidium* Cumulative prevalence^a in %	*Giardia* Cumulative prevalence^a in %	*Cryptosporidium*		*Giardia*
			Number of dogs	New positives in %	Number of dogs	New positives in %
3	19.7	7.9	264	21.6	264	8.7
4	34.5	11.0	177^b	20.1	228^b	3.1
6	42.3	16.2	121^b	17.4	171^b	5.8
12	44.1	20.7	77^b	6.4	114^b	9.6

^a based on 290 participating dogs.
^b dogs found negative in (all) preceding age groups; positive dogs were excluded from the following age group(s).

ISSN: 1751-0147