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Colony Collapse Disorder –Bees Knees and Polio

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Israeli Acute Paralysis Virus

Several bee viruses have been discovered: Acute Bee Paralysis Virus (ABPV), Kashmir Bee Virus (KBV), Black Queen Cell Virus (BQCV), Chronic Paralysis Virus (CPV), Cloudy Wing Virus (CWV), Deformed Wing Virus (DWV) and Sacbroodvirus (SBV). These viruses belong to the Picornaviridae superfamily; the type-virus of which is the poliovirus causing poliomyelitis (infantile paralysis). Dicistroviridae is a family of viruses within the picorna-like viruses. ABPV, KBV and BQCV are bee-infecting dicistroviruses.

In the year 2000, Mr. Yossi Slabestzki, Chief Officer for Apiculture at the Israeli Extension Service, approached Professor Ilan Sela, a virologist, to investigate a sudden appearance of bee mortality in Israel. A few years later, a new virus of the same dicistroviridae family was isolated and characterized from dead bees. From the available data at that time, this new virus was found to be closely related to Acute Bee Paralysis Virus (ABPV), an already known bee virus and was termed Israeli Acute Paralysis Virus.

As published in September 2007 (Cox-Foster et al, Science, 2007), among pathogens, IAPV is the most consistent indicator of Colony Collapse Disorder (CCD) Kasmir Bee Virus (KBV). At least two strains of IAPV are present in the United States (Palacios et al. (2008) J. Virology 82:6209-6217). One lineage is most prevalent in apiaries from the Eastern and Northwestern U.S. The second strain is more frequent in sampled colonies from the Western U.S. This strain matches more closely to several isolates sequenced to date from Australian package bees. The strain of IAPV found in Israel that defined this newly described species, is distinct from those in the U.S. and Australia. Extensive variation in the genetic sequence of the virus suggests that the virus is rapidly changing in the U.S. or has been present as multiple lineages for some time. As of Fall, 2007, IAPV was found in at least 19 states across the U.S.                           read more….. http://www.beeologics.com/iapv.asp  

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Written by citizen2009

November 22, 2009 at 10:35 pm

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