After battling – for more than a year – the SARS-CoV-2 pandemic and its successive waves affecting different regions of the world, the medical community, regardless of the specialization its members represent, has achieved a basic understanding of the main problems this virus poses. The knowledge gained throughout the pandemic concerns a wide range of issues – from the course of the disease, which is often unpredictable, through the methods of therapeutic treatment, to the emergence of the post-COVID phenomena.