The pandemic that was caused by COVID 19 made the world rethink ethical principles, morals, and justice, but always side by side with science. Never has bioethics been thought of so much, as a science that aims to provide the ethical content so that the human being is treated with dignity in the face of scientific techniques that concern life. Bio law as a branch of legal science reveals itself as an indispensable branch to the legal system, to regulate and reconcile biotechnological advances with the principle of human dignity, founded on democracy and the defense of fundamental rights. In the international sphere, the right to life is foreseen in art. 4 of the 1969 American Convention on Human Rights, a document that was ratified by Brazil and comes from the regional system. In the Brazilian legal system, the provision is in article 1, clause III, of the Federal Constitution of 1988, which established human dignity as the foundation of the Democratic State of Law, also regulating, in article 5, the right to life. Starting from these guidelines that the human being should not be considered a "thing", or an instrument, the thought, even if philosophical, can lead to important conclusions in the field of scientific experimentation, especially with what has been happening in relation to the vaccines for COVID-19, that even if approved by a committee and following international protocols, one cannot guarantee with them the absolute protection of human dignity, principles of bioethics and fundamental human values. And, because of these discussions, the courts are urged to manifest themselves about the refusals of workers to be vaccinated.