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Plos One : the Honey Bee Parasite Nosema Ceranae ; Transmissible Via Food Exchange, Volume 7

By Martin, Stephen, J.

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Book Id: WPLBN0003961109
Format Type: PDF eBook :
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Reproduction Date: 2015

Title: Plos One : the Honey Bee Parasite Nosema Ceranae ; Transmissible Via Food Exchange, Volume 7  
Author: Martin, Stephen, J.
Volume: Volume 7
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection
Publication Date:
Publisher: Plos


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Martin, S. J. (n.d.). Plos One : the Honey Bee Parasite Nosema Ceranae ; Transmissible Via Food Exchange, Volume 7. Retrieved from

Description : Nosema ceranae, a newly introduced parasite of the honey bee, Apis mellifera, is contributing to worldwide colony losses. Other Nosema species, such as N. apis, tend to be associated with increased defecation and spread via a fecal-oral pathway, but because N. ceranae does not induce defecation, it may instead be spread via an oral-oral pathway. Cages that separated older infected bees from young uninfected bees were used to test whether N. ceranae can be spread during food exchange. When cages were separated by one screen, food could be passed between the older bees and the young bees, but when separated by two screens, food could not be passed between the two cages. Young uninfected bees were also kept isolated in cages, as a solitary control. After 4 days of exposure to the older bees, and 10 days to incubate infections, young bees were more likely to be infected in the 1-Screen Test treatment vs. the 2-Screen Test treatment (P = 0.0097). Young bees fed by older bees showed a 13-fold increase in mean infection level relative to young bees not fed by older bees (1-Screen Test 40.8%: 2-Screen Test 3.4%: Solo Control 2.8%). Although fecal-oral transmission is still possible in this experimental design, oral-oral infectivity could help explain the rapid spread of N. ceranae worldwide.


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