'The highly contagious COVID-19 virus has presented particularly difficult public policy challenges. The relatively late emergence of an effective treatments and vaccines, the structural stresses on health care systems, the lockdowns and the economic dislocations, the evident structural inequalities in effected societies, as well as the difficulty of prevention have tested social and political cohesion. Moreover, the intrusive nature of many prophylactic measures have led to individual liberty and human rights concerns.' (Introduction)