Butterfly world champion Boglarka Kapas is among the nine swimmers on the Hungarian national team to have tested positive for coronavirus, the country's swimming association said in a statement late on Tuesday. 

Dominik Kozma, who won a bronze in the 4x100 meter freestyle relay at the 2017 FINA World Championships, has also tested positive for the virus. 

"We tested everyone on the national swim team roster, as well as the staff working with the team, trainers, masseurs," the Hungarian Swimming Association said in a statement. 

"Results keep coming in and as of Tuesday night nine were positive."

Olympic hopefuls had been attending training camps in Thailand over the past few months. The association said everyone was quarantined upon their return to Hungary and did not take part in any joint training sessions. 

"I feel fine," the 26-year-old Kapas, who won the 200 meter butterfly world title in 2019, said in a video posted on Instagram. 

"This does not change my routine, as I have been at home anyway, going out for some fresh air to my garden at most ... Even if you feel fine you should be extra careful and stay home if you can in case you carry the virus."

Kapas won a bronze medal at the 2016 Rio Olympics in the women's 800 meter freestyle event and last summer she won the 200 meter butterfly at the world championships in Gwangju, South Korea.  

Kapas also participated in Beijing Olympics in 2008, the youngest athlete with Hungarian delegation back then.

(With input from agencies)