Three Iowa Children Hospitalized with HUS After E. coli Infections Three Iowa children hospitalized with HUS after they contracted E. coli infections have been identified by several different newspapers in that state. The Jackson County Health Department does not know what the source of these illnesses is, and we do not know if the children are all sickened by the same strain of E. coli. TV6 is reporting that viewers are telling the station that there may be more cases throughout Jackson County. It’s also worth nothing that there was a boil water notice in the city of Maquoketa, where all three of these children live, in late May.