Introducing the SARS-CoV-2 and discussing the possible origin of the virus

The emergence of the dangerous and deadly COVID-19 disease in late 2019 in Wuhan, China, and its rapid spread has had a profound global impact on health, mental security, the economy, culture and politics of various countries, drawing the attention of the medical community and related sciences for identification and treatment of this disease. Various studies on the disease have identified a new coronavirus as the cause. Due to the severe respiratory infection and similarity of the virus to SARS-CoV, it was named SARS-CoV-2. Although many studies have been conducted to identify the origin of the virus and based on the obtained results, most researchers have proposed the hypothesis of natural selection of mutations in the bat-RaTGG13, but some researchers also believe that this virus was engineered in a lab. However, both groups of researchers believe that none of the hypotheses can be refuted until strong evidence is found as to the origin of the virus. In this review, along with the discussion on the origin of SARS-CoV-2 virus, the introduction of this virus, its function, pathogenesis and ways to prevent and treat the disease will be introduced.