The coronavirus disease 2019 (COVID-19) is caused by the singlestranded positive sense ribonucleic acid (ssRNA) virus known as the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Since COVID-19 first appeared in Wuhan, China, in December 2019, it has had an impact on millions of individuals all over the world. It is to blame for the global pandemic. SARS-CoV-2 has developed a number of mutant versions with different infectiousness. Globally, SARS-CoV-2 has significantly increased disease burden and mortality rates. SARS-CoV-2 and COVID-19 have caused an international social and economic crisis as a result of the harm they pose to people's personal health and healthcare systems. Western countries with strong economies are successful in preventing SARS-CoV-2 by vaccination, whereas economically weaker nations are less successful due to a lack of vaccine availability. Additionally, the quality of care for COVID-19 patients varies significantly depending on a country's level of economic prosperity. There is a lack of assistance from wealthy nations for economically weaker countries as a result of the pandemic's tendency to strike people everywhere.