When compared with patients with persistent neuropathic pain to those without persistent neuropathic pain we did not find an association with hospitalization, hospitalization in intensive care unit, fever, cough, anosmia, myalgia, arthralgia, comorbid disease, smoking, immuncompromised state, pneumonia and laboratory findings including leukocyte values, lymphocyte values, ferritin levels, CRP and CK levels at admission (p > 0.05). This evidence concerns the gene CRP and pneumonia.