Analyze of epidemiological characteristics of measles in Henan province from 2017 to 2021 and prevention and control measures
Objective To analyze the epidemiological characteristics of measles in Henan province from 2017 to 2021 and explore prevention and control measures.Methods The data were collected from the disease surveillance informa-tion reporting management system of the Chinese Disease Prevention and Control Information System,descriptive epide-miological methods were used to analyze the epidemiological characteristics of measles in Henan province from 2017 to 2021.Results A total of 1 242 measles cases were reported in Henan province from 2017 to 2021,with an average an-nual incidence rate of 0.22/100,000.The reported incidence rate of measles from 2017 to 2021 increased from 0.33/100,000 in 2017 to 0.64/100,000 in 2018,and then gradually decreased to 0.08/100,000 in 2019,0.02/100,000 in 2020,and 0.01/100,000 in 2021.Among them,the onset time was concentrated in April(206 cases,accounting for 16.59%),May(269 cases,accounting for 21.66%),and June(225 cases,accounting for 18.12%);the ratio of male to female was 1.65:1;the main age groups were ≤ 8 months old(392 cases,accounting for 31.56%)and>45 years old(379 cases,accounting for 30.52%);the occupation was mainly among scattered children;a total of 144 ca-ses had a clear history of immunization,accounting for 11.59%.Conclusion From 2017 to 2021,measles in Henan province has shown an overall upward trend and then downward trend.Since 2019,the incidence rate of measles has en-tered a low level.The onset time is concentrated in April to June.The gender distribution is slightly more in male.The age of onset shows a trend of"bidirectional transfer"towards infants and young children aged 8 months and below and a-dults aged 45 and above,the main occupation is scattered children,and the proportion of clear immunization history is low.On the basis of existing work,refined management should be carried out in combination with the current epidemio-logical characteristics of measles in Henan province.Meantime,immunization and measles monitoring should be strengthened,and timely detect and replace missed vaccines should be performed to eliminate immune gaps.
Henan provinceMeaslesEpidemiological characteristicsPrevention and control measures