Before revision:  While social distancing and isolation has been introduced widely  , more moderate contact reduction policies could become desirable owing to adverse social, psychological, and economic consequences of a complete or near-complete lockdown.
After revision:  While social distancing and isolation has been introduced widely to counter the COVID-19 pandemic. However , more moderate contact reduction policies could become desirable owing to adverse social, psychological, and economic consequences of a complete or near-complete lockdown.