Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)

From “novel coronavirus-2019” to “COVID-19 virus,” the name of the new coronavirus that first appeared in China has been evolving to its now official designation: SARS-CoV-2 ( severe acute respiratory syndrome coronavirus 2). Which was first recognized in the midst of an episode of respiratory ailment cases in Wuhan City, Hubei Region, China at the end of 2019. It was at first answered to the WHO on  December 31, 2019. International committe on Taxonomy of Viruses (ICTV) announced “severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)” as the name of the new virus on 11 February 2020. And same day, WHO announced “COVID-19” as the name of this new disease. In COVID-19, ‘CO’ stands for ‘corona,’ ‘VI’ for ‘virus,’ and ‘D’ for disease. However, WHO announced COVID-19 outbreak as a pandemic on 11 March 2020.

Pic: from google

Coronaviruses are named for their crown-like shape, and were first distinguished in the mid- 1960s. The viruses ordinarily cause respiratory ailments like common cold.At the first, a considerable lot of those infected from who worked or shopped at a wholesale seafood market in Wuhan, China, which likewise sold live and newly butchered creature; animals. This is the reason specialists speculate it crossed to people from an animals. A new study mentioned that the virus may have originated in bats and then spread to humans via a snake or Pangolin. So all accessible proof for COVID-19 recommends that SARS-CoV-2 has a zoonotic source. COVID-19, the primary mode of transmission is person-to-person contact ( direct contact ) through respiratory droplets. When people are in close contact and person inhales small droplets produced by an infected person (symptomatic or not) during coughing, sneezing, talking. Transmission may also occur through fomites in the immediate environment around the infected. And also new research raised that not just by respiratory droplets or environmental contact but also the possibility of a fecal –oral route of transmission.