Coronavirus SARS-CoV-2: Where do we stand?

An outbreak of coronavirus infection named SARS-CoV-2 emerged in December 2019 in Wuhan, a province of China. It caused a worldwide pandemic that led to devastating effects on healthcare systems and the economy. The contagiousness of the infection and the consequences of the disease in everyday life highlighted the great need for a suitable treatment against coronavirus as soon as possible. Therefore, lots of scientists all around the world focused on the discovery of a proper therapy against the virus. The present article explains the main differences in the clinical picture among different patients, the characteristics and concomitant diseases of more vulnerable people, medicines, and vaccines used in mass vaccinations. The first data that concern the effectiveness of vaccines from the countries that have already started mass vaccinations are positive. It is very early to conclude about the efficacy of vaccines in the population. However, the appearance of novel virus mutations raises concerns and forces some countries to impose further restrictions. The latest and the most contagious variant, known as Omicron, seems to decrease the global pandemic significantly.