Table 11: Relative risk ranking estimates for fish and fish products
Commodity
Hazard
Severity
Likelihood of adverse health effects
Relative risk ranking
Chilled/frozen whole fish and fillets* (including fish for raw consumption)
*Where fish and fillets are cooked before eating, the risk from non-spore-forming bacteria is significantly reduced.
V. parahaemolyticus
Moderate
Unlikely
Low
E. coli (non-EHEC)
Moderate
Unlikely
Low
Staphylococcus aureus
Moderate
Unlikely
Low
Salmonella (non-typhoid)
Serious
Unlikely
Low
Campylobacter spp.
Serious
Unlikely
Low
Shigella spp.
Serious
Unlikely
Low
Yersinia spp.
Serious
Unlikely
Low
L. monocytogenes1
Serious
Unlikely
Low
Noroviruses
Moderate
Unlikely
Low
Hepatitis A virus1
Serious
Unlikely
Low
Helminthic parasites
Serious
Unlikely
Low
Histamine
Moderate
Likely
Low
Escolar wax esters3
Moderate
Likely
Low
Ciguatoxin2
Serious
Unlikely
Low
Ciguatoxin/Tropical species2
Serious
Likely
Medium
Mercury6
Serious
Unlikely
Low
Mercury6
Serious
Likely
Medium
Arsenic4
Severe
Unlikely
Medium
Canned fish products
C. botulinum7
Severe
Unlikely
Medium
V. parahaemolyticus
Moderate
Unlikely
Low
E. coli (non-EHEC)
Moderate
Unlikely
Low
Staphylococcus aureus
Moderate
Unlikely
Low
Salmonella (non-typhoid)
Serious
Unlikely
Low
Campylobacter spp.
Serious
Unlikely
Low
Shigella spp.
Serious
Unlikely
Low
Yersinia spp.
Serious
Unlikely
Low
L. monocytogenes1
Serious
Unlikely
Low
Noroviruses
Moderate
Unlikely
Low
Hepatitis A virus1
Serious
Unlikely
Low
Histamine
Moderate
Unlikely
Low
Mercury1
Serious
Unlikely
Low
Arsenic4
Severe
Unlikely
Medium
Commodity
Hazard
Severity
Likelihood of adverse health effects
Relative risk ranking
Cold-smoked fish products
C. botulinum7
Severe
Unlikely
Medium
V. parahaemolyticus
Moderate
Unlikely
Low
Helminthic parasites
Serious
Unlikely
Low
E. coli (non-EHEC)
Moderate
Unlikely
Low
Staphylococcus aureus
Moderate
Unlikely
Low
Salmonella (non-typhoid)
Serious
Unlikely
Low
Campylobacter spp.
Serious
Unlikely
Low
Shigella spp.
Serious
Unlikely
Low
Yersinia spp.
Serious
Unlikely
Low
L. monocytogenes8
Serious
Unlikely
Low
L. monocytogenes8,10
Severe
Likely
High
L. monocytogenes9
Serious
Likely
Medium
Cold-smoked fish products (cont.)
L. monocytogenes9,10
Severe
Very likely
High
Noroviruses
Moderate
Unlikely
Low
Hepatitis A virus1
Serious
Unlikely
Low
Histamine
Moderate
Unlikely
Low
Mercury1
Serious
Unlikely
Low
Surimi
V. parahaemolyticus
Moderate
Unlikely
Low
L. monocytogenes1
Serious
Unlikely
Low
Hot-smoked fish products
V. parahaemolyticus
Moderate
Unlikely
Low
C. botulinum7
Severe
Unlikely
Medium
Helminthic parasites
Serious
Unlikely
Low
E. coli (non-EHEC)
Moderate
Unlikely
Low
Staphylococcus aureus
Moderate
Unlikely
Low
Salmonella (non-typhoid)
Serious
Unlikely
Low
Campylobacter spp.
Serious
Unlikely
Low
Shigella spp.
Serious
Unlikely
Low
Yersinia spp.
Serious
Unlikely
Low
L. monocytogenes1
Serious
Unlikely
Low
Noroviruses
Moderate
Unlikely
Low
Hepatitis A virus1
Serious
Unlikely
Low
Histamine
Moderate
Unlikely
Low
Mercury1
Serious
Unlikely
Low
Marinated, pickled, brined, dried or fermented fish products
Helminthic parasites
Serious
Unlikely
Low
Histamine
Moderate
Likely
Low
E. coli (non-EHEC)
Moderate
Unlikely
Low
Staphylococcus aureus
Moderate
Unlikely
Low
Salmonella (non-typhoid)
Serious
Unlikely
Low
Campylobacter spp.
Serious
Unlikely
Low
Shigella spp.
Serious
Unlikely
Low
Yersinia spp.
Serious
Unlikely
Low
L. monocytogenes1
Serious
Unlikely
Low
Commodity
Hazard
Severity
Likelihood of adverse health effects
Relative risk ranking
Roe and caviar
V. parahaemolyticus
Moderate
Unlikely
Low
E. coli (non-EHEC)
Moderate
Unlikely
Low
Staphylococcus aureus
Moderate
Unlikely
Low
Salmonella (non-typhoid)
Serious
Unlikely
Low
Campylobacter spp.
Serious
Unlikely
Low
Shigella spp.
Serious
Unlikely
Low
Yersinia spp.
Serious
Unlikely
Low
L. monocytogenes1
Serious
Unlikely
Low
Noroviruses
Moderate
Unlikely
Low
Hepatitis A virus1
Serious
Unlikely
Low
Histamine
Moderate
Unlikely
Low
Ciguatoxin2
Serious
Unlikely
Low
Escolar wax esters
Moderate
Unlikely
Low
1. For susceptible sub-populations the relative risk ranking is medium (severe x unlikely).
2. Ciguatoxin is mainly found in larger members of particular species of tropical and sub-tropical finfish from certain fishing areas.
3. Wax esters are only present in a few fish species (particularly escolar and oilfish).
4. Inorganic arsenic in fish is regulated in the Code, to ensure protection of public health and safety.
5. For susceptible sub-populations the relative risk ranking is high (severe x very likely). For the general population, the risk ranking is high (serious x very likely) when processing and product handling are not managed.
6. Mercury is a problem in large, long-living or predatory fish, such as swordfish, shark/flake and some tuna. These fish tend to accumulate higher levels of methylmercury than other species. The relative risk ranking is medium for the at-risk sub-population (the foetus) when the mother consumes mainly large, predatory or long-lived fish species.
7. Industry adherence to good manufacturing practice, good hygiene practice and appropriate product formulation (for example, pH, levels of salt, preservatives) control this hazard.
8. When correctly managed, the risk ranking is low for the general population, but high for at-risk sub-populations.
9. When not managed, that is, processing, product handling and storage not adequately controlled, the risk ranking is medium for the general population and high for at-risk populations.
10. L. monocytogenes is a severe hazard for at-risk populations.
Key: EHEC = enterohaemorrhagic Escherichia coli