... epithelia areenclosed by a basal lamina which constitutes a physicalbarrier against viral particles and hence a protection of theinternal tissues against infection. This may explain thestriking ... exclusively in the hypopharyngeal,mandibular and salivary glands, with minor accumula-tion in the crop, midgut and hind legs, while SPV had a slightly wider distribution, accumulating also in the brain and ... Tentcheva D, Gauthier L, Zappulla N, Dainat B, Cousserans F, ColinME, Bergoin M: Prevalence and seasonal variations of six beeviruses in Apis mellifera L. and Varroa destructor mite pop-ulations in...