Abstract
COVID 19is also known as Coronavirus disease 2019 and is an extremely contagious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which leads to producing great public health importance worldwide as well as in animals. At present COVID 19 is spreading throughout the world. The microscopical lesions are caused by covid19 is mainly affects upper respiratory tract and coronavirus infection also affects bronchiolar epithelial cells and type II pneumocyte of respiratory tract. Here we review the microscopical lesions caused by SARS COVID 19 in human and corona virus infection in animals is described for the benefit of the public.
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