naveed toru

Objective This study is to explore the patient characteristics and transmission chains of COVID-19 in the population of Gansu province, and support decision-making. Methods We collected data from Gansu National Health Information Platform. We conducted a case-control study, including patients with COVID-19 confirmed between January 23 and February 6, 2020 as cases, and all inpatients, outpatients and emergency patients except those with COVID-19 during the same period as the control group. We compared the gender and age between two groups. We also described the incubation period, consultation time and sources of infection in the cases, and calculated the secondary cases that occurred within Gansu for each imported case. Results We found no differences in gender (P=0.107). COVID-19 cases were more likely to occur among the middle-aged people (P=0.038). Twenty-eight (41.8%) of the 67 cases had a history of direct exposure in Wuhan. Twenty-five (52.2%) cases came from ten families, and...