An attorney for Giovanni Impellizzeri of Vineland pleaded not guilty on his behalf.
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The 25-year-old worked as a janitor for the Elizabeth Moore School in the Upper Deerfield School District.
Prosecutors say he contaminated food products and utensils in the school cafeteria with saliva, urine and feces.
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The next hearing has been scheduled for April 19th.
He is also charged with Distribution of Child Pornography and Possession of Child Pornography.