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Table 2 The total numbers of each host sampled in each catchment, as part of the Melbourne Water Corporation sampling program for waterborne pathogens (July 2011 to November 2015), together with the numbers of animals PCR test-positive for species/genotypes of Cryptosporidium (number of test-positive samples)

From: Cryptosporidium and Giardia taxa in faecal samples from animals in catchments supplying the city of Melbourne with drinking water (2011 to 2015)

Catchment

Emu

Waterbird

Deer

Rabbit

Kangaroo

Wallaby

Wombat

Total

Prevalence (%)

Cardinia

1 C. canis

 

4 (3 C. ryanae, 1 C. ubiquitum)

  

1 C. macropodum

2 (1 C. fayeri, 1 C. ubiquitum)

718

1.11

Greenvale

   

6 C. cuniculus

14 (12 C. macropodum, 1. C. fayeri, 1 C. parvum)

  

638

3.13

Maroondah

  

1 C. ryanae

  

1 C. hominis

6 C. fayeri

344

2.32

O'Shannassay

  

9 (6 C. ryanae, 1 C. hominis, 1 C. suis, 1 C. ubiquitum)

 

1 C. macropodum

3 C. macropodum

1 C. ubiquitum

622

2.25

Silvan

   

2 C. cuniculus

 

1 C. macropodum

 

527

0.57

Tarago

       

61

0

Thomson

       

31

0

Upper Yarra

 

3 C. sp. duck genotype

4 (3 C. ryanae, 1 C. hominis)

    

714

0.98

Yan Yean

  

2 C. ryanae

 

6 (2 C. cuniculu s, 2 C. sp. Kangaroo genotype, 1 C. macropodum, 1 C. fayeri)

  

601

1.33

  1. Each positive sample is identified to the nearest major Cryptosporidium clade. Overall prevalence for Cryptosporidium was 1.6 %. Species commonly reported in humans (26 %) are in bold-type. Bird, Reptile, Cat, Dog, Fox, Rat, Possum and Unknown groups were all test-negative for Cryptosporidium