Coronavirus: What is Herd Immunity? Is it an Effective Strategy Against COVID-19?

While social distancing, heavy lockdowns and intensive testing are helping some to contain the novel coronavirus, the UK has come into the limelight for reportedly hoping to acquire ‘herd immunity’. As it enters the 'delay’ phase of response against the pandemic, we explain what exactly herd immunity is and whether it is an effective approach in dealing with a pandemic such as this.