India, Sept. 30 -- Ventilation systems in modern office buildings may increase the risk of exposure to the coronavirus, according to research published in the Journal of Fluid Mechanics.

The University of Cambridge said on Wednesday that a research team, including Indian-origin expert Rajesh Bhagat, found that widely used 'mixing ventilation' systems, which are designed to keep conditions uniform in all parts of the room, disperse airborne contaminants evenly throughout the space. These contaminants may include droplets and aerosols, potentially containing viruses.

The evidence, the study says, increasingly indicates that the virus is spread primarily through larger droplets and smaller aerosols, which are expelled when people cough, sn...