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[Progress of speeding up measles control strategies in Anhui]
Insights
Catch-up measles immunization campaigns and enhanced surveillance significantly reduced measles cases by 87.71% in Anhui children. These strategies are crucial for effective measles control and outbreak prevention.
Area of Science:
- Epidemiology
- Immunology
- Public Health
Context:
- Measles outbreaks pose a significant public health threat, particularly to young children.
- Effective control programs are essential to reduce disease incidence and prevent epidemics.
Purpose:
- To evaluate the impact of intensified measles control strategies on disease reduction.
- To assess the effectiveness of catch-up immunization campaigns and surveillance systems.
Summary:
- Catch-up immunization campaigns for measles were conducted in children aged 1-6 years in three Anhui prefectures.
- A measles surveillance system was established, utilizing ELISA for IgM and HI tests for IgG antibodies.
- Following campaigns, measles antibody positive rates reached 100%, GMT increased, and measles cases decreased by 87.71%, avoiding outbreaks.
Impact:
- The study demonstrates the success of integrated measles control strategies, including immunization and surveillance.
- These findings support the implementation of similar programs to accelerate measles elimination efforts globally.
- Enhanced surveillance sensitivity and rubella control are vital components for comprehensive disease management.
Objective:
To speed up measles control program.
Methods:
Catching-up immunization campaigns on measles have been conducted among the children aged 1-6 years in three prefectures of Anhui by the end of 1997 and the measles surveillance system was established at the beginning of 1998. IgM antibody of measles and rubella was tested with ELISA and IgG antibody was examined with HI test.
Results:
The positive rate of measles antibody among children was 100%, GMT increased from 1:18.97 to 1:43.45 after the campaigns. Measles cases in the three districts from January to June 1998 had a 87.71% decrease, comparing with the same period of 1997 with measles outbreak avoided. There were 105(58.01%) cases of measles with positive IgM and 32(17.68%) cases of rubella with positive IgM out of 181 testees having fever and rash illnesses.
Conclusion:
Results indicated the programs as catching-up immunization campaigns on measles and keeping high level of MV immunization, establishing measles surveillance system with improvement of its sensibility together with rubella control program all seemed to be important strategies in speeding up the positive outcome of measles control.