Representational image.

The PGI-Chandigarh on Monday said with the prevailing low humidity promotes evaporation of viral particles and aerosol formations, the country may witness an increase in the airborne spread of the Covid-19.

โ€œWith the Covid positive numbers consistently rising for the past one week, it is high time that we guard up and follow Covid protocols without any lackadaisical approach,โ€ Post Graduate Institute of Medical Education and Research Director Jagat Ram said.

โ€œThere are chances of a spike in cases again in view of the onset of festival season, upcoming winters and fast-increasing pollution levels,โ€ he cautioned.

โ€œOn the basis of studies on other respiratory viruses like SARS, influenza, etc, which show seasonal variance with cases spiking in winters, there is a possibility that the coronavirus infections might also rise in the coming months.

โ€œFurthermore, low humidity promotes evaporation of viral particles and aerosol formations, which can increase the airborne spread of disease.โ€

About how the high levels of pollution might factor in the surging numbers, Ram explained pollution levels rise in winters as the cold air is dense and moves sluggishly.