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March 26, 2015


New Bacterial Disease


India’s shrimp (Penaeus vannamei) farming industry is having severe problems with a new bacterial disease called “white patch disease” (WPD).  It begins gradually, and then quickly results in mortalities of more than 70%.  The major symptoms are white opaque patches on the carapace, necrosis, whitish blue coloration, loss of appetite and pale white tails.  A rod-shaped bacterium (Bacillus cereus) was found to be the cause of WPD.


Source: The Shrimp List (a mailing list for shrimp farmers).  Subject: Shrimp Disease in the World/Bacterial White Patch Disease Caused by Bacillus cereus.  March 25, 2015.

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