ABSTRACT
To investigate the epidemic characteristics and prevention strategies of main infectious diseases. From 2010 to 2012, 23 notifiable diseases were reported in Yantai with average reported cases of 17,376. The morbidity was the highest in 2012 and the lowest in 2011. The accumulated death toll was 101 with the highest death rate in 2011 and the lowest in 2012. Major class A and B infectious diseases included viral hepatitis, phthisis, syphilis, clap and dysentery. The major class C infectious disease was hand-foot-and-mouth disease every year. The distribution of transmission routes of HIV/AIDS among patients with HIV and AIDS in Yantai were investigated. The overall condition of phthisis in Yantai showed stable with slight decrease. The occurrence rate of phthisis every season had fluctuation with higher rate in middle two seasons and lower rate at the beginning and end. The major type of viral hepatitis was still hepatitis B. Patients with hand-foot-and-mouth disease were children under 5 years old accounting for 90.56%, mainly reported in May, June, July and August. At present, the condition of plague prevention for infectious diseases in Yantai is not optimistic with both new and old infectious diseases