Effectiveness of Measles Control in Immigration City

Objective To evaluate the control effects of intervention for supplemental immunization activities and immunization enhancement activities of measles vaccination among children and adults. Methods The changes of incidence and effect of interference for measles in children and adults before and after intervention for supplemental immunization activities and immunization enhancement activities of measles vaccination were evaluated. Results Of 729 cases of measles reported,56.10% of the cases were adults.The measles cases of babies aged less than 8 months who did not reach the age of primary measles vaccination accounted for 27.69% in the measles cases of children aged under 5 years. Totally 60,189 children vaccinated vaccine of measles during supplemental immunization activities and immunization enhancement activities of measles vaccination during the period of 2006～2009.The incidence of measles dropped from 196.66 per 100,000 children in 2006 to 8.55 per 100,000 children in 2009(P 0.01).Totally 697,054 adults vaccinated vaccine of measles during immunization enhancement activities of measles vaccination from 2005 to 2009.The incidence of measles dropped from 13.15 per 100,000 adults in 2005 to 1.57 per 100,000 adults in 2009(P0.01).The incidence of measles among staff members of Foxconn was 50.55 per 100,000 persons during a lack of intervention for measles vaccination in 2005.After carrying out immunization enhancement activities of measles vaccination among new employees of Foxconn on four successive years,the incidence of measles was 2.61 per 100,000 persons in 2009,and the incidence of measles among new employees of Foxconn was decreased by 94.84%(P0.01).After carrying out immunization enhancement activities of measles among the children in each age group,the incidence of measles among the children dropped from 111.22/100,000 in 2008 to 8.55/100,000 in 2009,with a decline of 92.31%.The high peak of measles incidence in summer was eliminated after adopting the intervention measures. Conclusions The intervention effect of immunization enhancement activities of measles vaccination is superior to that of supplemental immunization activities of measles vaccination among the children.The immunization enhancement activities of measles vaccination are the important measures in significantly reducing the measles incidence of both children and adults in the immigration city.Continuously carrying out intervention for strengthening the immunization of measles vaccination among children and adults is the key strategy to achieve the goal of measles elimination in China in 2012.