Analysis of notifiable infectious diseases epidemic in Lishui city, 2005-2007

ObjectiveTo analyze the incidence trends and epidemiological features of notifiable infectious diseases in recent years after the implementation of network direct reporting in Lishui. MethodsA descriptive epidemiological analysis was conducted. A descriptive study was conducted. ResultsFrom 2005 to 2007, a total of 41 663 cases of 27 notifiable infectious diseases and 69 death cases were reported in the city. The average annual incidence rate was 549.95/lakh, the average annual death rate was 0.91/lakh, the case fatality rate was 0.17%. The incidence rates were 594.12/lakh in 2005, 564.46/lakh in 2006 and 558.12/lakh in 2007 with a trend of decreasing (I/Isup2/sup = 50.41， IP/I＜0.01), Among the total reported cases, there were 16 cases of class A infectious diseases, 25 786 cases of class B infectious diseases, and 15 861 cases of class C infectious diseases with an average annual incidence rates of 0.21/lakh, 344.20/lakh, and 211.72/lakh, respectively. The proportion of the different infectious disease were as follows: 14 603 cases of blood-borne and sexually transmitted diseases (35.05%); 13 728 cases of respiratory diseases(32.95%), 12 889 cases of intestinal diseases（30.94%）; 313 cases of natural focal and insect borne diseases (0.75%) and 132 cases of infectious diseases (0.32%). The first five infectious diseases with the highest average annual incidences were as follows: other infectious diarrhea (139.74/lakh), viral hepatitis (117.46/lakh), pulmonary TB (76.07/lakh), mumps (73.44/lakh) and syphilis (59.13/lakh). ConclusionThe prevention and control of infectious diseases should be strengthened and the focus should be on the prevention and control of blood-borne and sexually transmitted diseases, respiratory diseases and intestinal infectious diseases in Lishui city.