Open AccessA New Pandemic Coronavirus COVID-19 Evolutionary Relation,Transmission, Infectivity and Immunity
Author(s) -
Afrah M. H. Salman
Publication year - 2021
Publication title -
al-nahrain journal of science
Language(s) - English
Resource type - Journals
eISSN - 2663-5461
pISSN - 2663-5453
DOI - 10.22401/anjs.00.5.01
Subject(s) - pandemic , infectivity , coronavirus , virology , pneumonia , virus , transmission (telecommunications) , biology , immunity , covid-19 , viral pneumonia , common cold , disease , immunology , medicine , infectious disease (medical specialty) , immune system , pathology , electrical engineering , engineering
The currently COVID-19 virus appeared in China in the beginning at December 2019, infected more than thousands of humans, by causing a severe respiratory disease (like pneumonia), in severe cases lead to death. Rapidly spread all over the world and cause apandemic as announced by the world health organization (WHO), this virus showed a close evolutionary relation to other type of coronavirus, the sever acute respiratory syndrome coronavirus SARS-CoV, which is responsible for the endemic that appeared in 2002-2003. In this review it was been focused on the causes of the pandemic as well as study the results of the latest research in connection with the previous publications and the role of molecular genetic analysis study of the viral RNA to get more knowledge about the evolutionary relation, infectivity and immunity.