Corona viruses are a family of viruses that cause respiratory and intestinal illnesses in humans and animals. They usually cause mild colds in people but the emergence of the severe acute respiratory syndrome (SARS) epidemic in China in 2002–2003 and the Middle East respiratory syndrome (MERS) on the Arabian Peninsula in 2012 show they can also cause severe disease.
Reports suggested that the new virus (2019-nCoV) is more contagious than the one causing SARS but less likely to cause severe symptoms. There is much we need to learn about the new coronavirus (COVID-19). The World Health Organization (WHO) declared COVID-19 to be a pandemic, which is not an indication that the virus has become deadlier, rather, it’s an acknowledgement of the geographical spread of the disease.
The COVID-19 has posed frequent challenges during its course ranging from virus isolation, detection, prevention to vaccine development.