MEASLES OUTBREAK IN CHONGQING IN 1999-2000: IMPLICATIONS FOR A REGIONAL VACCINATION PROGRAM

Zhou YL, et al.

Division of Infection Control, Childrení»s Hospital, Chongqing University of Medical Sciences, Chongqing, China

 

Objectives: The aims of the study were to analyse characteristics of measles cases and to find out procedure to prevent the disease.

Methods: A retrospective review was undertaken of the clinical and vaccination records of 336 measles cases in Chongqing Childrení»s Hospital during 1999-2000. Comparison to last 3 decades measles cases record in the same hospital was made.

Results Of 336 recorded cases, 114 (33.92%) were infants under 1 year old, 64 (19.05%) were cases between 2 to 3 years old and 158 (47.02%) were above 3 years old and in-school age. Only 22.50% children had accepted measles vaccination. The results showed that the rate of measles illness was increase compared to measles children in our hospital in past 14 year (from 1985 to 1998, with 32 measles cases each year), especially on infant and older children. 196 (58.33%) cases happened in spring, and 109(30.95% in summer. The children came from countryside and did not get vaccine are more susceptible to the disease. The clinic data showed that the characteristics of the diseases was not typical and the complication was not serious. All patients showed good treatment results.

Conclusion: There has been a recent increase in the frequency of infant measles, suggesting an increased population of infants susceptible to measles before the age of 1. Increasing the rate of measles vaccination may help suppress future measles outbreaks and assist in protecting infants until they pass their first birthday. In addition, the measles immunity of mothers of this generation is less well developed and they provide less     effective passive immunity to their infants. The measles vaccine for 6 months infancy and for pregnancy women is important.

 

 

 
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