Purpo s e : Despite of the appropriate measles vaccination programs, epidemics occur every
2∼3 years and especially occurred in large group in late of 2000 and early of 2001. To
evaluate the effect of the vaccination, needs for revaccination and to determine the optimal
age for revaccination, we examined measles specific IgG and IgM in mealses patients and
investigated different antibody appearance according to vaccination history.
Me th ods : Anti-measles antibodies were checked in sera of 201 patients(male : 117, female
: 84) that are responsible for Criteria for Disease Control among 298 patients that are
suspicious of measles including inpatients and outpatients in Wonju Christian Hospital from
June in 2000 to June in 2001. They were checked by immunofluorescent assay. Then we
classified them according to sex, month, distribution of age due to vaccination and appearance
of measles antibody.
Re s ul t s : The ratio of male and female was 1.4 : 1. The maximum incidence was 38
cases(18.9%) in May in 2001. Incidence was increased from November in 2000 to January
in 2001 and decreased in February and March in 2001. Thereafter it was increased from
April in 2001 again and decreased from June. There were 93 cases(46.3%) in vaccinated
group and 108 cases(53.7%) in unvaccinated group. In the distribution according to age in
vaccinated group, there were 54 cases(58.1%) in more than 10 years old, 15 cases(16.0%)
between 7 and 10 years old, 12 cases(12.9%) between 15 months and 3 years old, 6 cases
(6.5%) between 4 and 6 years old and 6 cases(6.5%) between 6 months and 14 months old.
In the distribution according to age in unvaccinated group, there were 88 cases(81.5%)
between 6 months and 14 months old, 9 cases(8.3%) between 15 months and 3 years old, 7
cases(6.5%) less than 6 months old, 3 cases(2.8%) more than 10 years old and 1 case(0.9%)
between 7 and 10 years old. In the distribution of measles specific IgG and IgM, 78 cases (87.6%) were IgG(+), IgM(+) and 11 cases(12.4%) are IgG(+), IgM(-) in vaccinated
group. In unvaccinated group, there were 69 cases(63.9%) of IgG(+), IgM(+) and 39 cases
(36.1%) of IgG(-), IgM(+).
Con c lu s i on s : We thought that measles incidence was peaked between 6 months and 14
months old in unvaccinated group because of maximum decrement of transplacental matenal
antibody and was peaked in more than 10 years old in vaccinated group because of maximum
decrement of measles specific IgG. We think that measles revaccination as well as vaccination
and especially optimal age for revaccination is very important to prevent measles
successfully.
Purpo s e : Despite of the appropriate measles vaccination programs, epidemics occur every
2∼3 years and especially occurred in large group in late of 2000 and early of 2001. To
evaluate the effect of the vaccination, needs for revaccination and to determine the optimal
age for revaccination, we examined measles specific IgG and IgM in mealses patients and
investigated different antibody appearance according to vaccination history.
Me th ods : Anti-measles antibodies were checked in sera of 201 patients(male : 117, female
: 84) that are responsible for Criteria for Disease Control among 298 patients that are
suspicious of measles including inpatients and outpatients in Wonju Christian Hospital from
June in 2000 to June in 2001. They were checked by immunofluorescent assay. Then we
classified them according to sex, month, distribution of age due to vaccination and appearance
of measles antibody.
Re s ul t s : The ratio of male and female was 1.4 : 1. The maximum incidence was 38
cases(18.9%) in May in 2001. Incidence was increased from November in 2000 to January
in 2001 and decreased in February and March in 2001. Thereafter it was increased from
April in 2001 again and decreased from June. There were 93 cases(46.3%) in vaccinated
group and 108 cases(53.7%) in unvaccinated group. In the distribution according to age in
vaccinated group, there were 54 cases(58.1%) in more than 10 years old, 15 cases(16.0%)
between 7 and 10 years old, 12 cases(12.9%) between 15 months and 3 years old, 6 cases
(6.5%) between 4 and 6 years old and 6 cases(6.5%) between 6 months and 14 months old.
In the distribution according to age in unvaccinated group, there were 88 cases(81.5%)
between 6 months and 14 months old, 9 cases(8.3%) between 15 months and 3 years old, 7
cases(6.5%) less than 6 months old, 3 cases(2.8%) more than 10 years old and 1 case(0.9%)
between 7 and 10 years old. In the distribution of measles specific IgG and IgM, 78 cases (87.6%) were IgG(+), IgM(+) and 11 cases(12.4%) are IgG(+), IgM(-) in vaccinated
group. In unvaccinated group, there were 69 cases(63.9%) of IgG(+), IgM(+) and 39 cases
(36.1%) of IgG(-), IgM(+).
Con c lu s i on s : We thought that measles incidence was peaked between 6 months and 14
months old in unvaccinated group because of maximum decrement of transplacental matenal
antibody and was peaked in more than 10 years old in vaccinated group because of maximum
decrement of measles specific IgG. We think that measles revaccination as well as vaccination
and especially optimal age for revaccination is very important to prevent measles
successfully.