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流行病学调查显示．始于１９８８年江苏省病毒性肝炎高发是由甲型肝炎春季流行高峰所致。其危险因素包括：人群甲肝抗体水平降低、生食海产品和有接触史等。为使发病强度得到控制，自１９９４年起采用以接种甲肝疫苗为主导措施的防治对策，每年全省开展“压春峰”活动。该对策取得显著防病效果，６年间共减少发病 ６５２ ８７９例，发病强度从全国第一位降至全国平均水平以下，急性肝炎病例中甲肝病例比例下降，甲肝爆发点显著减少，６年共减少直接经济损失 １３０ ５７５．８万元，减少间接经济损失 ７８ ０４８．３万元；应用疫苗费用投入２８ ８３０万元；效益成本比为７．２４。由此认为．江苏省近年采取针对性措施，遏制甲肝春峰的防治对策是低投入、高产出的防治对策。
Epidemiological survey shows. Since 1988, high incidence of viral hepatitis in Jiangsu Province is caused by the peak of the hepatitis A epidemic in spring. The risk factors include: lower levels of hepatitis A antibody in human beings, raw seafood and contact history. In order to control the intensity of the disease, since 1994, the prevention and treatment countermeasures based on the vaccination with hepatitis A vaccine have been adopted. The countermeasure achieved significant disease prevention effect, a total of 652 879 cases were reduced in 6 years, the incidence intensity dropped from the first in the country below the national average, the proportion of hepatitis A cases in acute hepatitis decreased, the incidence of hepatitis A was significantly reduced, and the total reduction in 6 years Direct economic loss of 130.5758 million yuan, reduce indirect economic loss of 78.0483 million yuan; application of vaccination costs 28.83 million yuan; benefit cost ratio of 7.24. Think so. In recent years, Jiangsu Province has taken targeted measures to curb the prevention and treatment measures for Hepatitis Chunfeng, which is a low-input and high-yield control strategy.