To provide scientific evidence for Prevention and control measures of Occupational Forest Encephalitis (OFE) by analyzing the Epidemiological and occupational characteristics, clinical manifestation of OFE cases reported in HunlunBuir city during 2008~2017.

Based on the China Center for Disease Control and Prevention Information System, a database of OFE cases in HunlunBuir from 2008~2017 was established. The Epidemiological characteristics of OFE were analyzed including three distributions, the available information includes 291 cases of population, geographical, periods, occupational distribution, clinical manifestations and laboratory examinations.

There were 291 OFE cases in HunlunBuir from 2008 to 2017, including 287 cases of mild OFE, Moderate, Serve in1, 3 cases, 282 male. In the temporal distribution, the most cases were 48 cases in 2011, 119 casesin June. 33.7% of the cases (98) were reported in Yakeshi, following 29.2% and 21.3% inroqen Autonomous Banner (85) , Genhe (62) . Of 291 cases, male were in 282.The high incidence of OFE mainly existed in Forest management 112 (38.5%) . The most clinical manifestation were headache in 195 (67%) , fever in 168 (57.7%) .

The distribution of Occupational Forest Encephalitis cases in diverse regions and months in HunlunBuir are quite different. The occupational safety precautions of the forest workers and tick-borne encephalitis vaccines should be strengthened to reduce the occurrence of Occupational Forest Encephalitis.

Forest encephalitis; Occupational Diseases; Epidemiology; Occupational Characteristics; Clinical Manifestation