New Delhi, Aug 10 - Three doctors in a leading hospital here who fell ill after examining swine flu patients have tested negative for the virus, a hospital official said Monday.

The test results of Ram Manohar Lohia Hospital's swine flu screening centre chief are still awaited.

'Three of our doctors' samples have been found negative. But I am yet to get a confirmed result for myself,' S.K. Sharma told IANS. 'I believe I'm well and the result should come negative.'

He said he had asked his colleagues to take extra care since doctors, nurses and paramedics are constantly exposed to the virus.

On Friday, three doctors in the capital tested positive for the contagious virus.