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				 The Fairfield Medical Center said in a statement that the 
				patients, five of whom were in a critical condition, had all 
				attended a picnic at Cross Pointe Free Will Baptist Church in 
				Lancaster on Sunday. 
				 
				The U.S. Centers for Disease Control and Prevention had sent 
				anti-toxin to treat the sick, the hospital said, while local 
				health officials investigated the cause of the outbreak. 
				 
				Botulism is a rare but potentially fatal paralytic illness 
				caused by a nerve toxin that is produced by certain bacteria, 
				according to the CDC. 
				 
				Symptoms include drooping eyelids, slurred speech and muscle 
				weakness, which can progress to paralysis of the limbs and 
				respiratory muscles, the CDC said. 
				 
				The hospital said Botulism is not contagious, so there is no 
				threat to the public at-large or people at the hospital. 
				Symptoms generally begin showing up within 36 hours of eating 
				the contaminated food, but can start as many as 10 days after, 
				the hospital said. 
				 
				(Reporting by Curtis Skinner in San Francisco; Editing by Simon 
				Cameron-Moore) 
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