Stream

name

Genotypes

detected

Human health risk classb

Common host-sourcesc

Proportion of genotypes obtained in stream

No. water samples positive for genotype

Season genotype detected

Winter

Spring

Summer

Fall

Nith River

C. andersoni

Low

Ruminants (predominantly adult cattle, >3 months)

100%

3

Canagagigue Creek

C. andersoni

Low

Ruminants (predominantly adult cattle, >3 months)

80%

16

W12 genotype

None

Unknown-likely wildlife

10%

2

C. baileyi

None

Avian

5%

1

W25 genotype

None

Unknown-likely wildlife

5%

1

Schneider Creek

C. baileyi

None

Avian

22%

2

C. parvum

High

Humans, ruminants (in particular pre-weaned calves < 3 months)

11%

1

Cervine genotype IIa

Medium

Deer, sheep

11%

1

Deer mouse genotype III

None

Deer mouse

11%

1

Muskrat genotype

None

Muskrat, vole

11%

1

Skunk genotype

Low

Skunk, raccoon

11%

1

W12 genotype

None

Unknown-likely wildlife

11%

1

W25 genotype

None

Unknown-likely wildlife

11%

1