Denmark confirms first local mpox transmission

The Statens Serum Institut (SSI) has announced the first instance of local mpox transmission within Denmark. While this development is not entirely surprising, given the virus's spread in other European nations, health officials are working diligently to monitor the situation. They stress that current cases exhibit mild symptoms and the overall risk to the Danish public remains low.

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Experiences from other European countries show that the infection can spread locally once the variant has been introduced.

Mpox, a virus closely related to smallpox, can manifest with symptoms such as fever, chills, headache, muscle pain, fatigue, swollen lymph nodes, and skin rashes. Transmission occurs through close personal contact, including sexual contact, and can also happen indirectly through contaminated materials or from animals. The SSI highlights that the disease, regardless of the specific variant, is less severe than smallpox.

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At the same time, it is important to emphasize that the disease courses have been mild so far, and that the overall risk in the population remains low.

This confirmation follows the detection of the first case of the mpox variant clade 1b in Denmark last week, with three additional cases now confirmed. Preliminary analyses suggest these may be independent infections with a common origin outside Denmark. Health authorities, including the Danish Health Authority, the Danish Patient Safety Authority, and the SSI, are closely collaborating to track infections, limit further spread, and inform relevant populations. Vaccination and preventative measures are particularly emphasized for groups at higher risk of exposure.

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Mpox is a zoonosis and can be transmitted to humans from infected animals and from there spread from person to person.