A study of the health and economic effects of influenza-like illness on the working population under different working environments of a large corporation in Hong Kong.

Lee, Kenneth K C; Li, Shu Chuen; Kwong, Kai Sun; Chan, Thomas Y K; Lee, Vivian W Y; Lau, Joseph T F

OBJECTIVE The incidence, health and economic impacts of influenza-like illness (ILI) among the working population in Hong Kong had never been studied. Due to the nature of the disease, ILIs can have a significant impact on the operation of a corporation in terms of loss of productivity and reduced work performance. The present study was undertaken to determine the health and economic impacts of ILIs under different environmental conditions on the working population of a large corporation. METHOD Over 2,000 employees of a large corporation in the travelling and tourism industry were studied with three different types of working environment (confined, typical office and well ventilated) by two structured questionnaires. RESULTS The most affected group in terms of productivity and health was the group working in a confined area, whilst those working in a well-ventilated area were least affected. However, symptoms of the confined area group seemed to disappear faster. The infection rate appeared to vary according to work environment for the studied population. CONCLUSION Policies on preventive measures and early treatment are important for a corporation to reduce loss in productivity due to ILIs.