Covid-19 Crisis and Due Diligence Principle in International Law

Coronavirus crisis that began since November 2019 in China influenced the entire World rapidly. This crisis provoked some important questions regarding its legal aspects. One of these questions was about the duty of States in realm of individuals’ rights. Due diligence in international law should be considered a key notion for regulation of States’ behavior concerning the coronavirus crisis. Content of this flexible principle as a conduct rule is not a new innovation. No-harm rule as corollary of that principle could be described as an appropriate framework in regulating the conduct of States regarding their neighbors during Covid-19 outbreak. States’ obligations for respecting the human fundamental rights as a key point have been studied in this article. The shadow of due diligence principle on fulfillment of International Health Regulation by States has been the core of this study.