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Phenomenological risk assessment of sporadic listeriosis outbreaks

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ISOPOL XV / 13.09.2004 / www.alp.admin.ch joerg.hummerjohann@alp.admin.ch

Phenomenological risk assessment of sporadic listeriosis outbreaks

R. Aebi

1

, M. Mühlemann

2

, J. Hummerjohann

2

, M. Schällibaum

2

1Pôle européen de gestion et d’économie, Université Louis Pasteur, F-67085 Strasbourg

2Agroscope Liebefeld-Posieux, Swiss Federal Research Station for Animal Production and Dairy Research (ALP), CH-3003 Berne

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ISOPOL XV / 13.09.2004 / www.alp.admin.ch joerg.hummerjohann@alp.admin.ch

Problems of Risk Assessment

Missing link between exposition and disease : Dose-response (d-r) relation unknown

Reason:

volunteer feeding studies not feasible

but: sick consumers as “involuntary volunteers“

No need for knowing d-r, if risk should not be managed:

PRIMARY INTEREST: POSSIBLE DAMAGE SECONDARY INTEREST: CAUSE OF DAMAGE

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