Considering the growing number of reports implicating Nosema ceranae in colony morbidity/mortality, it is relevant to clarify the current epidemiology of Nosemosis in Portugal beekeeping context, pinpointing the etiologic agents to the species level and, eventually, identifying possible intra-specific types. About 2% of the registered Portuguese apiaries were sampled in two consecutive years (2011 and 2012). Ap...