11.   The illness is spread through direct exposure such as kissing, sharing eating utensils and coughing and sneezing.

12.   The illness is spread through direct exposure such as kissing, sharing eating utensils or being coughed or sneezed on.

13.   The investigation had been widened to see if two related events in the same building could possibly have spread the illness.

14.   The washing of such foods in contaminated water is a prime way of spreading the illness.

15.   The Tennessee investigators are emphatic in saying that no virus, chemical or toxin spread the illness through the school.