Flood-ravaged Chennai and its suburbs braced to meet the mounting challenge of preventing outbreak of diseases as the deluge left heaps of garbage and muck on the streets, while the sun shone bright and normal train and air services resumed today.

Though flood water has receded from arterial roads, most of the low-lying areas continue to be flooded with sewage as drains were chocked with plastic, mattresses and sundry material.

Authorities have scrambled nearly 25,000 sanitary workers to clear the stinking garbage accumulated over the past several days to prevent outbreak of diseases.

The Centre, meanwhile, said that there is no report of outbreak of any water-borne or vector-borne disease in Tamil Nadu.

A public health team of the Union Health Ministry met the Tamil Nadu health secretary and other officers of the Health Department to discuss the flood situation in the state and public health action that is required for prevention and control of communicable diseases, an official statement said.