行大量投资，卢旺达的学校复课战略就是一个例子。45 在大流行病爆发前学校已经人满为患的国家，安全风险更大，如果没有大规模的公共投资来扩大学校的基础设施，这种风险是无法合理承受的。
45 In countries where schools were already overcrowded before the pandemic, this risk is even greater and cannot reasonably be borne without significant public investment in expanding school infrastructure.