Investigation on an incident of occupational contact dermatitis in a farm
LIU Baofeng1, QIN Runan1, LI Xudong1, ZHU Jun2, ZENG Qiang1
1. Department of Occupational Disease Control and Prevention, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China; 2. Affiliated Hospital of Tianjin Academy of Traditional Chinese Medicine, Tianjin 300120, China
Abstract：Objective To investigate the cause of an incident of occupational contact dermatitis in a farm in Tianjin Prefecture, so as to provide insights into occupational safety. Methods The disinfection process, use of disinfectants and individual protective measures in this farm were collected, and a field epidemiological investigation was conducted to collect the demographic characteristics, history of occupational contact, clinical symptoms, diagnosis and treatment data, and onset of disease among individuals with the same type of job. The cause of this incident was analyzed. Results There were ten interns exposed to potassium hydrogen sulfate compounds simultaneously in this farm, and then, nine interns developed skin flushing across the body, and swelling and itching of the skin. Among these ten interns, five individuals were admitted to hospitals because of severe symptoms and were then clinically diagnosed as systemic contact dermatitis. All five individuals were cured following treatments. Epidemiological survey showed that all cases had a definite history of occupational contact with potassium hydrogen sulfate compounds but without use of any protective agents. In addition, there were thirty-five individuals with the same type of job in this farm that developed similar symptoms when they joined in the disinfection for the first time, and these individuals were self-cured following cessation to contact; however, recurrence of symptoms was found following contacts again. Conclusion This is a cluster of occupational contact dermatitis caused by exposure to potassium hydrogen sulfate compound.
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