“…In research articles reporting clinical manifestation and outcome of COVID-19 patients (78 [54.4%]) the diagnosis of SARS-CoV-2 infection relied principally on RT-PCR (52 [63.4%]) [11-20, 32, 61, 62, 69, 93, 94, 100, 108-111, 113, 115-124, 126, 129, 132, 134, 135, 138-151], serology (4[6.3%]) [18, 20, 22-24, 86, 99], RT-PCR and serological assay (5[6.6%]) [29-31, 85, 127, 152] or a combination of diagnostic tests including clinical evaluation [6,13,19,21,112,114,125,128,130,131,133,136,137,153,154]. Fever, fatigue, poor appetite, headache and lymphopenia at lab tests Chest X-ray negative for COVID-19 lesions Case-report [141] Fever, body aches, cough, fatigue and nasal congestion Case-series (one out of three patients was symptomatic) [149] Outcomes of the confirmed COVID-19 HD patients Outcome of patients on in-centre HD was evaluated on 52 (35.9%) articles including 12,365 patients (range 11-3160) COVID-19 patients (Table 3S). Studies come principally from China (15.3%), Italy (15.3%) and Spain (11.5%); 3.8% of the studies included European authorship.…”