Jessica Ennis Hill's coach is calling for the British Olympic Association to move the preparation camp for the Rio Olympics to a zika-free zone outside Brazil.
Toni Minichiello wants to speak to organisers about moving the camp from Belo Horizonte following growing concerns about the Zika virus in the region.
He has also revealed that he will not be encouraging Jessica Ennis-Hill to defend her heptathlon champion in the Games.
The World Health Organisation has announced new advice for women travelling to Zika-affected countries. It has also argued that women who suspect they have the virus should be allowed to have an abortion.
Some health experts in central America believe that women should not get pregnant until 2018 because of the risk of serious birth defects from the virus.
The virus has been linked to the microcephaly in babies, which prevents foetus' brains from developing properly.
There is no vaccine or treatment.