In the global pandemic environment caused by COVID-19, the fulfillment of the duty of providing access to health becomes a challenge, especially for the developing countries in Mercosur. The unpredictability spread of the disease, associated with the costs of providing access to health make the task even more difficult to be implemented individually. This reinforces the need for a joint effort by Mercosur member states in order to face the pandemic. Thereafter, the hypothetical deductive method and bibliographic review will be used in this article. The conclusion is that, especially at the present moment when the problems are global, Mercosur institutions cannot fail to act on behalf of the needy.