Coronaviruses are observed in birds and mammals and can be transmitted to humans, leading to outbreaks and pandemics. Among the most recent ones are SARS-CoV, MERS-CoV, and COVID 19. Thus, the objective was to describe a discussion about coronaviruses, with an emphasis on Sars-Cov-2. From the data collected, it can be seen that the current pandemic has had impacts on public health and socioeconomic life in more than 170 countries worldwide, to date, with tens of millions of people infected and hundreds of thousands of deaths. In this regard, prevention actions must be intensified, especially among the most vulnerable patients (the elderly and those with comorbidities that affect immunity). In addition, new studies should be carried out so that vaccines and antivirals can be implemented for application to COVID-19.