12/15/21

The COVID-19 outbreak was treated as a case of pneumonia with unknown etiology appeared in the Wuhan city of China, at the end of December 2019, which spread across the country to worldwide with a high rate [1]. The PRC (People's Republic of China) Centre for Disease Control (CDC) analyzed the respiratory samples and declared that the pneumonia was caused by a novel coronavirus which named the pneumonia as Novel Coronavirus Pneumonia (NCP) [2]. The coronavirus is one of the major virus that target the respiratory system of the human [3]. The Chinese researchers named the virus as 2019-nCoV [4]. Later, the International Committee on Taxonomy of Virus named the novel coronavirus as Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) [5]. On the same day, February 11, 2020 the World Health Organization (WHO) name the Pneumonia as Coronavirus disease-19 (COVID-19) [6].

The World Health Organization (WHO) declared the COVID 19 outbreak as sixth public health of emergency Services (SPHEC) on January 30, 2020 [7]. This was not the first outbreak of the coronavirus. The previous coronavirus outbreaks include Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) outbreak and Middle East Respiratory Syndrome Coronavirus (MERS-CoV) outbreak [8]. The COVID-19 thought the third outbreak of the coronavirus which affected more than 209 countries including Pakistan. According to the World Health Organization (WHO), total of 1,093,349 confirmed cases with 58,620 mortalities. To date, the number of highest positive cases encountered in USA followed by Italy and Spain .

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