The virus outbreak presumably originated via a zoonotic transmission linked to the seafood market in Wuhan (China) and later accelarated with human to human transmission, causing the severe subsequent outbreak. Since the original outbreak, SARS-CoV2 has rapidly spread across the world and, in January 2020, The World Health Organization (WHO) declared COVID-19 a global public health emergency.
In late November 2019, a serious form of pulmonary illness originated in Wuhan City (Hubei province, China) an engulfed a majority of the world. This pneumonia outbreak was attributed to a novel coronavirus, a lipid-enveloped RNA virus, which was named by the International Committee on Taxonomy of viruses severe acute respiratory syndrome coronavirus 2 (SARS-CoV2). The disease caused by the virus was termed coronavirus disease-2019 (COVID-19).
The limitations of RT-PCR, specifically. the fact that it is time-consuming and inadequate for the assessment of disease severity, have affected the process of epidemiological disease containment and has taken a toll on the healthcare management chain. As the risk of infection for other patients and personnel must be kept to a minimum, the indications for imaging have to be carefully considered. Imaging is primarily performed in patients with a negative RT-PCR, but high clinical suspicion of COVID-19, or, in patients with diagnosed COVID-19 who are suffering from moderate to severe symptoms.
Coronavirus disease-2019 (COVID-19) originated in the Wuhan, Hubei Province, China in November 2019 and has since been declared a pandemic by the WHO. COVID-19 is an acute infectious disease, primarily affecting the respiratory system. Currently, real-time reverse transcription polymerase chain reaction (RT-PCR) performed on respiratory specimens is considered the the reference by which to diagnose COVID-19.