quail,virus, please help

[roosters97]

my 10 happy quail that were heathy are now down to 7, and 1 dying right now,please help i am so sad,whats wrong,i think its a nerve thing,they be laying down, and all a sudden bam!! they'll start flapping there wings,please help.

 

[dlhunicorn]

http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/201500.htm