Olympian Sudha Singh, who returned from Rio has been tested positive for the H1N1 virus. Doctors in Bengaluru have ruled out the Zika virus.

Addressing the media on Tuesday, doctors at Fortis Hospital at Nagarbhavi in Bengaluru said the 30-year-old athlete will be kept in an isolation ward for seven days.

Sudha returned to India on Saturday and complained of fever, body ache and fatigue. Her blood samples were sent to the National Institute of Virology in Pune for the testing as Brazil has reported a number of Zika cases.

Doctors said that all athletes returning from Brazil are being screened for the Zika virus.

Preventive measures have been taken for her coach and the others who were travelling with Sudha.

The News Indian Express report said that the Karnataka government is paying for the treatment of the athletes.