The last option is supported by Vazquez-Sanchez et al. (2012), which observed a high incidence of S. aureus in a ten year study of marketed fish in Spain.
However, these unsatisfactory levels of samples, could only be dangerous
if there is found to be Methicillin Resistant S. aureus (MRSA) or if the sashimi samples were stored above 10 C, the temperature from which the staphylococcus toxin starts producing (Ray & Bhunia, 2008)