Abstract
As the organism is afflicted by COVID-19 as a whole, recognition of the disease can sometimes pose difficulties for healthcare workers. Laboratory and radiological workup are necessary for expedient diagnosis in most cases. Although considered as a gold standard, the need for certified laboratories, expensive equipment, and trained staff are drawbacks of RT-PCR tests to be applied to large numbers of people as screening tests . Chest radiography is recommended as an initial test for any patient with suspicion of the disease, while chest tomography is more sensitive to demonstrate specific lesions and the extent of the disease inflicting lungs.
Keywords: CD4/CD8 ratio, Complete blood count, COVID-19, CRP, Neutrophil/lymphocyte ratio, Outbreak, Pandemic, RT-PCR.