When the World Cup in biathlon ended in Oslo on March 20, the stars celebrated with a big party.

A number of Swedish skiers, including Elvira and Hanna Öberg, Martin Ponsiluoma and Sebastian Samuelsson, fell ill in covid-19 - and missed the Swedish Championships in Piteå.

- It was very sad to miss the Swedish Championships at home, I had really looked forward to it.

It really felt like the perfect end to this fantastic season to compete at home, says Elvira Öberg when SVT Sport meets her in Stockholm.

Maybe a little extra tough just for the sisters Öberg, with Piteå as home ground where dad Tomas also went home from foreign service in Pakistan to be involved in arranging the competitions.

- We really grew up just a stone's throw from the stadium, it was a long time since I competed at home as well.

A bit of an anticlimax, but at the same time we have managed so long from getting sick and if there is a competition weekend I would have had to sacrifice, it would still have been an easy choice.

The World Cup is something else anyway.

Of course, there will be many headlines because almost everyone who was at the same party became infected, how was this party?

- It was a very good evening, but at the same time I do not know if that was where I got infected.

I may have been infected in the bus on the way up to the stadium or on the flight on the way home.

We knew when we went there that there is a risk, there were many cases around in many teams.

But there are 15 other places I may well have been infected in as well.

- Did you still get puffed that type everyone was infected?

- Yes, it still shows how contagious this is.

Extremely large proportion of those who were there became ill, it shows how sick it really is that we have managed so long.