Offer of hepatitis A vaccine for guests who have eaten at Frognerseteren
People who have eaten prepared food at Frognerseteren within the last 14 days are being offered a hepatitis A vaccine to reduce the risk of illness and prevent further spread.
Press release / Published: 08.08.2025
In Oslo, you can get the vaccine at Nydalen Vaccination Centre, Gullhaugveien 6, during specific hours. The offer is available until August 15. You do not need to book an appointment.
How long after my visit can I get the vaccine?
You can get the vaccine up to 14 days after being exposed. If you visited Frognerseteren close to 14 days ago, we recommend getting vaccinated as soon as possible.
If you visited Frognerseteren around the time of its last open day, Friday, August 1, you can wait a few days before getting the vaccine.
If it has been more than 14 days since your visit, the vaccine will not help prevent illness from this outbreak.
Vaccination at Nydalen Vaccination Centre is not recommended if
- It has been more than 14 days since you ate at Frognerseteren
- You were vaccinated against hepatitis A within the last year or are fully vaccinated (2 doses)
- You have previously had hepatitis A
- You only bought drinks or food that were not prepared at Frognerseteren, such as packaged chocolate.
Where can I get the vaccine?
Oslo municipality offers the vaccine at Nydalen Vaccination Centre to anyone who lives or is staying in Oslo and ate prepared food at Frognerseteren during the relevant period.
If you cannot go to Nydalen, you can contact your general practitioner to get the vaccine.
If you are traveling or staying somewhere else in Norway, you can contact the local municipality to ask how you can get vaccinated.
Opening hours for hepatitis A vaccination at Nydalen Vaccination Centre
You can get the hepatitis A vaccine at Nydalen Vaccination Centre on the following days:
- Friday, August 8: 17:00–21:00
- Saturday, August 9: 10:00–18:00
- Sunday, August 10: 10:00–18:00
- Monday, August 11 to Tuesday, August 12: 17:00–21:00
- Wednesday, August 13 to Friday, August 15: 17:00–19:00
Phone support
If you have questions about the vaccine or the outbreak at Frognerseteren, you can call us at 40 41 02 51.
Phone hours:
- Thursday, August 7: 17:00–21:00
- Friday, August 8: 10:00–21:00
- Saturday, August 9: 10:00–18:00
- Sunday, August 10: 10:00–18:00
- Monday, August 11 to Tuesday, August 12: 17:00–21:00
- Wednesday, August 13 to Friday, August 15: 17:00–19:00
How much does the vaccine cost?
The vaccine is free, both at the vaccination centre and at your general practitioner, if you ate prepared food at Frognerseteren within the last 14 days.
When should you contact healthcare services if you feel sick?
If you visited Frognerseteren from mid-June and have symptoms of hepatitis A, contact your general practitioner if you need medical help or have questions.
If you are seriously ill and need immediate help, call the emergency health service at 116 117. In case of danger to life or health, call 113.
About hepatitis A
Hepatitis A is a viral infection that causes inflammation of the liver. It spreads through contaminated food or water, or direct contact with someone who is infected. It usually takes 2 to 6 weeks from infection to symptoms.
Common symptoms include:
- Fever
- Nausea and vomiting
- Loss of appetite
- Dark urine
- Pale stool
- Stomach pain
- Yellowing of the skin and eyes (jaundice)
- Diarrhoea is rare.
Hepatitis A does not cause chronic illness, but some people may feel sick for a longer time.
The illness usually goes away without treatment, but it's important to support your immune system by resting, eating well, and getting enough sleep.
The most important way to prevent illness and avoid spreading it is good hand hygiene. This helps prevent many types of infections.