TABLE 4.

Concentration, prevalence, and molecular characterization of Cryptosporidium parasites impacting study sites within the South Nation watershed for the 10-week study period

SiteNo. of oocysts/litera at sampling wk:Species and/or genotype by sequence analysis (accession no. of GenBank match) [frequency of detection of species or genotype]
12345678910
South Nation River
    MST-20.20NDNDND0.140.05ND0.540.18C. andersoni (AB089285) [1.0]
    MST-1ND0.13NDNDNDNDND0.630.13NDC. andersoni (AB089285) [0.5]
C. parvum (AF308600) [0.5]
Genotype W12 (AY007254) [0.5]
    MST-110.13ND0.070.070.070.130.090.88C. andersoni (AB089285) [1.0]
Genotype W12 (see Fig. 4) [1.0]
    MST-80.050.05ND0.230.090.140.340.05C. andersoni (AB089285) [1.0]
    MST-7ND0.15ND0.090.470.140.590.400.48C. andersoni (AB089285) [1.0]
Little Castor River
    MST-12NDND0.360.260.140.070.040.450.26C. andersoni (AB089285) [0.5]
Genotype W12 (see Fig. 4) [0.5]
    MST-13ND0.380.090.070.170.14ND0.480.20Cryptosporidium muskrat genotype II (AY545546) [0.7]
Genotype W12 (see Fig. 4) [0.3]
    MST-50.040.08ND0.220.330.280.090.560.11Cryptosporidium muskrat genotype II (AY545546) [0.7]
C. baileyi (AF093495) [0.3]
Genotype W12 (AY007254) [0.3]
Butternut Creek
    MST-10ND0.09ND0.200.360.070.130.880.27C. andersoni (AB089285) [1.0]
    MST-90.350.601.501.030.780.360.530.180.19Genotype W12 (AY007254) [0.5]
C. andersoni (AB089285) [0.2]
Cryptosporidium cervine genotype (AY737593) [0.2]
Genotype W1 (AF262330) [0.2]
Castor River, MST-4NDNDNDNDND0.210.040.670.14Cryptosporidium muskrat genotype II (AY737567) [0.5]
Cryptosporidium fox genotype (see Fig. 4) [0.5]
Payne River, MST-60.260.090.180.930.310.180.140.65C. andersoni (AB089285) [0.7]
Cryptosporidium muskrat genotype II (AY545546) [0.3]
Rural drainage ditch
    MST-30.260.05ND0.050.090.180.09C. andersoni (AB089285) [0.5]
Cryptosporidium cervine genotype (AY737593) [0.5]
Genotype W12 (AY007254) [0.3]
    MST-150.050.350.220.090.140.130.29C. andersoni (AB089285) [0.5]
Cryptosporidium muskrat genotype II (AY737567) [0.2]
Cryptosporidium muskrat genotype I (see Fig. 4) [0.2]
    Avg0.100.120.160.230.240.140.150.490.21ND
  • a A dash indicates that no sample was collected, and ND indicates that no Cryptosporidium oocysts were detected by IFA.