ABSTRACT
A case of Thelazia callipaeda infection in a 7 months old infant in Dalian was reported.The epidemiology of human thelaziasis in China was investigated in this report.China is the nation with the most reported human Thelazia callipaeda cases in the world,up to 626 case reports of human Thelazia callipaeda infection that were distributed in 28 provinces from 1917 to 2016.We analyzed more than 400 Chinese thelaziosis cases with clinical data from 1917 to 2016.Ages of the patients are from 2 months to 88 years old.Male and female cases are 60.22％ and 39.78％ relatively.The occupation of patients was analyzed,that the preschool children occupied 55.38 ％,farmers occupied 32.27 ％;workers occupied 4.78 ％,and the others occupied the rest 7.57％.This study showed that it is of great significance to strengthen the research on the biology and epidemiology of the sucking nematode,to prevent the spread and epidemic of the disease.