Denmark – Outbreak of Hepatitis A in Denmark


The Statens Serum Institut is investigating an outbreak of contagious hepatitis caused by infections with the hepatitis A virus. The source of the infection is still unknown.

Last edited on 25 August 2020
The outbreak includes 14 patients, 8 women and 6 men aged 17-63 years. The patients have become ill from April to July 2020. The patients live all over the country and 11 have been hospitalized. Viruses from patients have been typed to genotype 1B.Graph with number of cases of hepatitis A

Region Number of patients
 The capital  3
 Zealand  5
 Southern Denmark  0
 Central Jutland 3
 North Jutland  3
 Total  14

Tracking the source

To investigate the source of the outbreak, the Statens Serum Institut interviews the patients in relation to uncovering how they have become ill. The initial interviews have shown that the patients have not been out traveling, do not know each other and that they had not participated in joint events. It therefore suggests that the source of infection is a common food that has been sold throughout the country. The outbreak is being investigated in collaboration with the Danish Veterinary and Food Administration and the DTU Food Institute.

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