A corona virus is a kind of common virus that causes an infection in your nose, sinuses, or upper throat. Most corona viruses aren't dangerous. COVID-19 is a disease that can cause what doctors call a respiratory tract infection. It can affect your upper respiratory tract (sinuses, nose, and throat) or lower respiratory tract (windpipe and lungs). It's caused by a corona virus named SARS-CoV-2. It spreads the same way other corona viruses do, mainly through person-to-person contact. Infections range from mild to serious. SARS-CoV-2 is one of seven types of corona virus, including the ones that cause severe diseases like Middle East respiratory syndrome (MERS) and sudden acute respiratory syndrome (SARS). The other corona viruses cause most of the colds that affect us during the year but aren’t a serious threat for otherwise healthy people. In early 2020, after a December 2019 outbreak in China, the World Health Organization identified SARS-CoV-2 as a new type of corona virus. The outbreak quickly spread around the world. , 
Cite this article:
Mayur S. Jain, Shashikant D. Barhate. Corona viruses are a family of viruses that range from the common cold to MERS corona virus: A Review. Asian J. Res. Pharm. Sci. 2020; 10(3):204-210. doi: 10.5958/2231-5659.2020.00039.9
1. "Virus Taxonomy: 2018b Release". International Committee on Taxonomy of Viruses (ICTV). March 2019. Archived from the original on 2018-03-04. Retrieved 2020-01-24.
2. "2017.012-015S" (xlsx). International Committee on Taxonomy of Viruses (ICTV). October 2018. Archived from the original on 2019-05-14. Retrieved 2020-01-24.
3. CTV Taxonomy history: Orthocoronavirinae". International Committee on Taxonomy of Viruses (ICTV). Retrieved 2020-01-24.
4. Fan Y, Zhao K, Shi ZL, Zhou P (March 2019). "Bat Corona viruses in China". Viruses. 11 (3): 210. doi:10.3390/v11030210. PMC 6466186. PMID 30832341.
5. International Committee on Taxonomy of Viruses (2010-08-24). "ICTV Master Species List 2009—v10" (xls).
6. Definition of Corona by Merriam-Webster, Merriam-Webster, archived from the original on 2020-03-24, retrieved 2020-03-24.
7. Gwaltney JM Jr. Virology and immunology of the common cold. Rhinology. 1985;23: 265. [PubMed].
8. Myint S, Johnstone S, Sanderson G, Simpson H. An evaluation of ‘nested’ RT-PCR methods for the detection of human corona viruses 229E and OC43 in clinical specimens. Mol Cell Probes. 1994;8: 357–364. [PMC free article] [PubMed].
9. Sanchez CM, Jimenez G, Laviada MD. et al. Antigenic homology among corona viruses related to transmissible gastroenteritis virus. Virology. 1990; 174:410. [PMC free article] [PubMed].
10. Schmidt OW, Allan ID, Cooney MK. et al. Rises in titers of antibody to human corona viruses OC43 and 229E in Seattle families during 1975–1979. Am J Epidemiol. 1986; 123:862. [PMC free article] [PubMed]