claim: herd immunity is not a realistic exit strategy during a covid-19 outbreak
evidence_1: this study provides vital information on the extent of virus spread in a country where social distancing is in place, concluding that herd immunity to sars-cov-2 is not a realistic short-term exit strategy option.", "the \"herd immunity\" in the case of an epidemic with a pathogen with potential fatal outcome is not achievable because it's essential mechanism, randomisation of immunised (r) within a society is not achievable.")