The WHO has declared<unk> -19 a pandemic. Due to the lack of broad screening that includes the general population (including asymptomatic patients) and the lack of PCR and antibody tests with acceptable sensitivity and specificity, an accurate estimate of the incidence rate of coronavirus disease 2019<unk> -19) cannot be accurately estimated. The role of symptomatic and asymptomatic transmission continues to be debated. Due to limited testing of asymptomatic individuals, the potential inaccuracies of early PCR tests and antibody tests, the inconsistent reporting and lack of organized data, an accurate case-fatality rate of<unk> -19 have yet to be established. The middle-aged and elderly population seems to be the most commonly affected with a median age of 49 - 56 years.<unk> -19 has affected males more often than females.  While the majority of<unk> -19 cases were first reported in China, at this point the disease has spread to all the continents of the world.
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