Figure 3. Antibody titers to European bat lyssavirus type 2 (EBLV-2) in bat sera from Scotland. An EBLV-2–specific modified fluorescent antibody virus neutralization (mFAVN) test was used to determine the level of circulating antibody in Daubenton bats from 19 sites in Scotland. The test uses a 3-fold dilution series (9, 27, 81, 243, etc.) and the positive/negative cutoff is a titer (reciprocal dilution) of 27. Circles on the graph represent either single serum samples or pools of sera (88 for Daubenton bats, 5 for Natterer bats, and 1 from Pipistrelle bats). All titers >27 are Daubenton bats from 2 sites (5 from site 1 and 1 from site 15). No data were available for sites 2, 17, and 19.