What is the incubation period for listeriosis?

BMC Infectious Diseases

Table 1 Estimates of incubation period of 37 cases with documented single exposure, by clinical form of invasive listeriosis

Clinical form	Country	Year	Ref	Implicated food	Number of cases	Incubation period (days)
CNS involvement
	UK	1988	[14]	cheese	1	1
	France	1993	[15]	rillettes (pork pâté)	2	10,12
	France	1995	[16]	brie (cheese)	1	8*
	France	1999	[17]	rillettes (pork pâté)	1	14*
	Belgium	2001	[18]	frozen cake	1	4
	France	2003	†	spreadable sausage	1	2
	Austria	2008	[19]	jellied pork tongue	1	14
	Germany	2009	[20]	cheese	1	13
	Norway	2010	[21]	camembert (cheese)	1	4
Bacteraemia
	Finland	1989	[22]	salted mushrooms	1	1
	Italy	1993	[23]	rice salad	2	1,1
	USA	1998	[13]	frankfurter	1	2
	Austria	2008	[19]	jellied pork tongue	1	2*
	Norway	2010	[21]	camembert (cheese)	9	3,7,1,1,5,1,12,4,5
	France	2011	†	horse minced meat	1	4
Pregnancy associated
	USA	1989	[24]	shrimp	2	19,23
	France	1993	[15]	rillettes (pork pâté)	1	42*
	France	1995	[16]	brie (cheese)	6	17,22,31,33,37,67
	France	1997	†	pont l’evêque (cheese)	2	36,24
	France	2000	†	mozzarella	1	19*

* Duration between the consumption of contaminated food and the date of the biological sampling of the patient.
† French Institute of Public Health Surveillance, InVS (unpublished data).

ISSN: 1471-2334