Survival of Enteroviruses during Anaerobic Sludge Digestion
Table 1
Virus isolations from digested sludge in 1969
101
Date of sampling
Jan. 30
Feb. 27-Apr. 15.
3 observations
Apr. 18.
Apr. 22.
Apr. 29
May 6.
May 9.
May 13.
May 16 -June 17.
10 observations
June 20.
June 24.
June 27.
July 1.
July 4 - 1 8 .
5 observations
July 22.
July 25.
July 29.
Aug. 1.
Aug. 5-12.
3 observations
Aug. 15.
Aug. 19.
Aug. 22.
Aug. 26.
Aug. 29.
Sept. 2.
Result
Reo
Negative
Reo
Negative
Reo
P-2
E-7
E-7
Negative
CB-4
Negative
Negative
Reo
Negative
CB-2,3J-2,
E-ll
Negative
Negative
E-ll
Negative
E-ll
E-6,Reo
Negative
Negative
CB-3,E-U,Reo
Negative
Total of samples tested:
Total of positive:
In%:
74
28
37.8
Date of sampling
Sept. 5.
Sept. 9 - 26.
6 observations
Sept. 30.
Oct. 3.
Oct. 7.
Oct. 10.
Oct. 14 - 21.
3 observations
Oct. 24.
Oct. 28.
Oct. 31.
Nov. 3.
Nov. 6.
Nov. 10.
Nov. 13.
Nov. 17-■24.
3 observations
Nov. 27.
Dec. 1.
Dec. 3.
Dec. 8.
Dec. 18.
Dec. 22.
Dec. 29.
Dec. 31.
Result
E-ll
Negative
E-ll
Negative
E-6
Reo
Negative
CB-1,3
Negative
Reo
Reo
E-7
CB-1, Reo
Reo
Negative
CB-lß-7
Negative
E-l
E-l
Negative
Negative
P-l, Reo
P-l,E-6,Reo
Total of strains isolated:
40
Total of types isolated:
11
P = poliovirus
CB = coxsackie - B virus
E = echovirus