TABLE 4.

Total BALOs counts of BD group in water (log PFU mL^–1) and PL shrimp (log PFU mg^–1).

	Day 0	Day 1	Day 3	Day 5	Day 7
Water	4.76 ± 0.11	4.57 ± 0.14	3.51 ± 0.20	3.04 ± 0.10	2.83 ± 0.16
PL	N*	2.91 ± 0.15	2.24 ± 0.13	1.03 ± 0.17	1.79 ± 0.18

Double-layer plating with host strain TC was used for enumerating BALOs in PL and waters. BALOs were only detected in BD group, and not (zero counts) in CD and SD groups. *N, not assayed, as BDN-1F2 was just added to the waters and not so likely to reach PL guts instantly.