A review on Covid-19 (Corona Virus Disease), Transmission and Pathological effects
In response to public health , it is necessary to write a review on COVID-19 disease as emerging zoonotic disease . Transmission of the new pathogen SARS-CoV-2 virus have several ways. These ways , spill – over or Evolutionary jump help virus to spread from one host to another with a rapid adaptation ( Epidemiological cycling ) .
Covid-19 can transmitted from animals to humans (Zoonotic disease ) or from humans to animals ( Zooanthroponosis ) or from humans to humans ( Emerging Infectious disease ) or from animals to animals as infectious disease .
On other hand some several wild animals considered as reservoir hosts such as bats , snakes , frogs , hedge-hoge , wild rats , marmots and rabbits ( Mohamed A . Mahdy , Waleed younis , Zamzam Ewaida 2020 ) .
Since December 2019 when Covid-19 emerged in human from seafood market at Wuhan , Huanan city south China , rapidly transmitted all over the world as viral outbreak .
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