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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Mean proportion (± 95% CI) of honey bees (Apis mellifera) in Nosema ceranae-infected and control groups that chose candy with 2% or 5% propolis in comparison with candy without propolis in the choice test; differences between treatments were not significant (GLMM, p > 0.05).