ABSTRACT:
The COVID-19 pandemic has unfolded not only as a global health emergency but also as a true infodemic, where misinformation and disinformation spread faster than the virus itself. At the height of the crisis, digital platforms amplified half-truths, conspiracy theories, and emotionally charged narratives that eroded public trust in science and institutions. This contribution examines the dynamics of health disinformation during the pandemic through the lens of communication ethics and social psychology, highlighting how algorithmic personalization, echo chambers, and filter bubbles shaped public perception and health behaviors. The analysis proposes an integrated framework for resilient health communication in times of emergency, built on three pillars: platform transparency, systematic collaboration in fact-checking, and the promotion of critical digital citizenship as a shared responsibility. Countering health disinformation is not merely a technical or regulatory challenge, but an ethical imperative closely tied to democratic participation and social equity. Rethinking communication as a tool for trust, co-responsibility, and awareness means fostering a more sustainable and inclusive public health system. Health without borders also implies truth without barriers.