Imported rocket salad partly responsible for increased incidence of hepatitis A cases in Sweden, 2000-2001.
An increased incidence of domestic hepatitis A without any obvious source of infection in Sweden and a small outbreak in late spring 2001 led to the undertaking of a case-control study. Consumption of imported rocket salad was clearly associated with disease (odds ratio 9.1, 95% confidence interval 1.5 to 69). The importation of vegetables from countries where hepatitis A is endemic to countries where this disease is not endemic continues to be a public health problem.
Nygård
K
K
Smittskyddsinstitutet (Swedish Institute for Infectious Disease Control, SMI), Stockholm, Sweden.
Andersson
Y
Y
Lindkvist
P
P
Ancker
C
C
Asteberg
I
I
Dannetun
E
E
Eitrem
R
R
Hellström
L
L
Insulander
M
M
Skedebrant
L
L
Stenqvist
K
K
Giesecke
J G
JG
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D017678:Sex Distribution; D013548:Sweden / Q000453:epidemiology; D014675:Vegetables