Although the staining pattern can indicate towards a type of vesicle, there is no certainty without further validation by other methods like co-localization with typical marker proteins.
Mice infected with B31 - A3 and ospC7 / ospC +4 strains mounted typical and similar immune responses to OspC, P39 [used as a marker for infection in animals (22)-RSB-, and additional borrelial proteins (Fig. 4).