Month
Roost
Observed seroprevalence (+/n) 1
titer (mean) (LogD50/ml)
Dubious (n)2
AF [+/n (%)] Y [+/n (%)] AM [+/n (%)]
May 1 26.5 (9/34) 2.1 12 9/34 (26.5)
2 10.3 (6/58) 2.1 12 5/50 (10) 0/1 1/7 (14.3)
3 <25% (0/8) 4 0/7 0/1
4 <10% (0/33) 5 0/32 0/1
5 7.1 (2/28) 2 6 2/21 (9.5) 0/3 0/4
mean 10.5 (17/161) 2.06
Sept 1 100 (9/9) 2.3 3/3 (100) 4/4 (100) 2/2 (100)
2 100 (42/42) 2.3 4/4 (100) 33/33 (100) 5/5 (100)
3 100 (3/3) 2.3 1/1 (100) 2/2 (100)
4 84.6 (22/26) 2.3 4 7/9 (77.8) 7/7 (100) 8/10 (80)
5 89.7 (26/29) 2.4 3 3/3 (100) 22/24 (91.7) 2/2 (100)
mean 93.5 (102/109) 2.32
Overall Overall 44 (11/270) 2.22 46 33/163 (20.2) 67/75 (89.3) 20/32 (62)