Objective To analyze the characteristics of transmission and diagnosis of SARS in Beijing in the year of 2004.To provide the suggestion for the prevention and control of SARS.
Methods With the data collected from the field survey on SARS epidemic in Beijing in the year of 2004, the process of onset and epidemic of SARS and the characteristic of diagnosis about SARS were described.
Results 7 SARS cases(2 men and 5 women)aged between 20 and 49 were found.The first case of SARS was a researcher working at a virus laboratory.The interval of onset time between the first case and the last one was 14 days.The shortest and the longest incubation period were 3 and 12 days, respectively.The main approach of infection was close contact in the near distance.All of the cases had a fever or pathological changes in lungs.The pathogenic detection and serum antibody test of SARS were the main criterion for SARS diag nosis.
Conclusion The infection from the virus laboratory was considered as the source of epidemic of SARS in Beijing, 2004.With t he analysis of SA RS infection chain, -charge phenomena.which was found in the process of SARS transmission in 2003 was observed again.Streng thening the management of laboratory and removing the hidden troubles of infection transmission in laboratory were the key factors for preventing the SARS and other infectious diseases in the future.
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