Unscientific speculation.
Tokuda
Y
Y
D004196:Disease Outbreaks; D004927:Escherichia coli Infections / Q000453:epidemiology / Q000209:etiology* / Q000382:microbiology; D019453:Escherichia coli O157; D005506:Food Contamination; D006076:Government; D006801:Humans; D007564:Japan / Q000453:epidemiology; D011634:Public Health