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Table 2

Frequency of samples that tested positive and negative for LTIIa and STII, respectively

SiteSampling monthLTIIa
STII
++
Alabang River May 28 28 
July 15 15 10 
September 25 
Novembera ND ND ND ND 
Mangangate River May 20 15 20 
July 20 20 25 
September 51 25 
November 88 11 88 
Laguna Lake Station 1 May 23 23 
July 29 30 
September 12 11 
November 13 12 
Laguna Lake Station 5 May 26 20 
July 22 20 
September 20 
November 
424 E. coli isolates screened 
SiteSampling monthLTIIa
STII
++
Alabang River May 28 28 
July 15 15 10 
September 25 
Novembera ND ND ND ND 
Mangangate River May 20 15 20 
July 20 20 25 
September 51 25 
November 88 11 88 
Laguna Lake Station 1 May 23 23 
July 29 30 
September 12 11 
November 13 12 
Laguna Lake Station 5 May 26 20 
July 22 20 
September 20 
November 
424 E. coli isolates screened 

All samples were obtained in 2018.

aND, no data; samples were not obtained during this time because of the construction activities resulting in road closures.

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