Volume 3, Number 4—December 1997
THEME ISSUE
Foodborne
Controlling Emerging Foodborne Microbial Hazards
Indentifying and Controlling Emerging Foodborne Pathogens: Research Need
Table
Research data needed for most emerging foodborne pathogens.
Research Area | Knowledge gaps |
---|---|
Detection methods | Sampling and enrichment techniques Cultivating Biochemical/taxonomic char. Antibodies for capture and differentiation Subtyping Virulence-associated char. Detecting injured or viable-but-nonculturable cells |
Microbial ecology | Contaminated foods Reservoirs and routes of transmission Life cycles Geogr. range and seasonality Route of contamination and location of pathogen in food |
Pathogenicity | Dis. char. and diagnosis Sequelae Host range Infectious dose Subpopulations at risk Animal models |
Growth characteristics | Free-living vs. obligate parasite Growth requirements •Temperature •pH •Water activity •Oxygen |
Survival characteristics | Heat resistance D-values Z-values Susceptibility to antimicrobial food additives Acid resistance Sensitivity to disinfectants or dessication Sensitivity to radiation oUV oIonizing |
Control | Effectivenss of food preservation Inspection systems to segregate contamination materials |
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