Mass measles immunization campaign: experience in the Hong Kong Special Administrative Region of China

After the 1988 measles outbreak, annual notification rates for measles in Hong Kong SAR between 1989 and 1999 were 0.4-4.9 per 100 000, with peaks in 1992, 1994 and 1997. The first half-year incidence rates per 100 000 were 2.3 in 1997, 0.5 in 1995 and 1.2 in 1996. Monthly notification rates increas...

Full description

Bibliographic Details
Main Authors: Chuang Shuk Kwan, Lau Yu Lung, Lim Wei Ling, Chow Chun Bong, Tsang Thomas, Tse Lai Yin
Format: Article
Language:English
Published: The World Health Organization 2002-01-01
Series:Bulletin of the World Health Organization
Subjects:
Online Access:http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862002000700012
_version_ 1797284156603891712
author Chuang Shuk Kwan
Lau Yu Lung
Lim Wei Ling
Chow Chun Bong
Tsang Thomas
Tse Lai Yin
author_facet Chuang Shuk Kwan
Lau Yu Lung
Lim Wei Ling
Chow Chun Bong
Tsang Thomas
Tse Lai Yin
author_sort Chuang Shuk Kwan
collection DOAJ
description After the 1988 measles outbreak, annual notification rates for measles in Hong Kong SAR between 1989 and 1999 were 0.4-4.9 per 100 000, with peaks in 1992, 1994 and 1997. The first half-year incidence rates per 100 000 were 2.3 in 1997, 0.5 in 1995 and 1.2 in 1996. Monthly notification rates increased from a baseline of <10 cases to 59 in May 1997. Serological surveillance showed only 85.5% of children aged 1-19 years had measles antibodies. An epidemic, mainly because of failure of the first dose to produce immunity, seemed imminent in mid-1997. A mass immunization campaign targeted children aged 1-19 from July to November 1997. The overall coverage was 77%. The rate of adverse events was low. After the campaign, measles notification fell to 0.9 per 100 000 in 1998. A two-dose strategy and supplementary campaigns will maintain measles susceptibility at levels low enough to make measles elimination our goal.
first_indexed 2024-03-07T17:44:58Z
format Article
id doaj.art-84c1d9ca5a5848098aee8ab72ceced22
institution Directory Open Access Journal
issn 0042-9686
language English
last_indexed 2024-03-07T17:44:58Z
publishDate 2002-01-01
publisher The World Health Organization
record_format Article
series Bulletin of the World Health Organization
spelling doaj.art-84c1d9ca5a5848098aee8ab72ceced222024-03-02T15:20:07ZengThe World Health OrganizationBulletin of the World Health Organization0042-96862002-01-01807585591Mass measles immunization campaign: experience in the Hong Kong Special Administrative Region of ChinaChuang Shuk KwanLau Yu LungLim Wei LingChow Chun BongTsang ThomasTse Lai YinAfter the 1988 measles outbreak, annual notification rates for measles in Hong Kong SAR between 1989 and 1999 were 0.4-4.9 per 100 000, with peaks in 1992, 1994 and 1997. The first half-year incidence rates per 100 000 were 2.3 in 1997, 0.5 in 1995 and 1.2 in 1996. Monthly notification rates increased from a baseline of <10 cases to 59 in May 1997. Serological surveillance showed only 85.5% of children aged 1-19 years had measles antibodies. An epidemic, mainly because of failure of the first dose to produce immunity, seemed imminent in mid-1997. A mass immunization campaign targeted children aged 1-19 from July to November 1997. The overall coverage was 77%. The rate of adverse events was low. After the campaign, measles notification fell to 0.9 per 100 000 in 1998. A two-dose strategy and supplementary campaigns will maintain measles susceptibility at levels low enough to make measles elimination our goal.http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862002000700012Measles/épidemiologyMeasles/prevention and controlImmunization programsMeasles-mumps-rubella vaccine/administration and dosageMeasles-mumps-rubella vaccine/adverse effectsDisease outbreaks/prevention and controlChild, PreschoolChildAdolescenceSeroepidemiologic studiesHong Kong
spellingShingle Chuang Shuk Kwan
Lau Yu Lung
Lim Wei Ling
Chow Chun Bong
Tsang Thomas
Tse Lai Yin
Mass measles immunization campaign: experience in the Hong Kong Special Administrative Region of China
Bulletin of the World Health Organization
Measles/épidemiology
Measles/prevention and control
Immunization programs
Measles-mumps-rubella vaccine/administration and dosage
Measles-mumps-rubella vaccine/adverse effects
Disease outbreaks/prevention and control
Child, Preschool
Child
Adolescence
Seroepidemiologic studies
Hong Kong
title Mass measles immunization campaign: experience in the Hong Kong Special Administrative Region of China
title_full Mass measles immunization campaign: experience in the Hong Kong Special Administrative Region of China
title_fullStr Mass measles immunization campaign: experience in the Hong Kong Special Administrative Region of China
title_full_unstemmed Mass measles immunization campaign: experience in the Hong Kong Special Administrative Region of China
title_short Mass measles immunization campaign: experience in the Hong Kong Special Administrative Region of China
title_sort mass measles immunization campaign experience in the hong kong special administrative region of china
topic Measles/épidemiology
Measles/prevention and control
Immunization programs
Measles-mumps-rubella vaccine/administration and dosage
Measles-mumps-rubella vaccine/adverse effects
Disease outbreaks/prevention and control
Child, Preschool
Child
Adolescence
Seroepidemiologic studies
Hong Kong
url http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862002000700012
work_keys_str_mv AT chuangshukkwan massmeaslesimmunizationcampaignexperienceinthehongkongspecialadministrativeregionofchina
AT lauyulung massmeaslesimmunizationcampaignexperienceinthehongkongspecialadministrativeregionofchina
AT limweiling massmeaslesimmunizationcampaignexperienceinthehongkongspecialadministrativeregionofchina
AT chowchunbong massmeaslesimmunizationcampaignexperienceinthehongkongspecialadministrativeregionofchina
AT tsangthomas massmeaslesimmunizationcampaignexperienceinthehongkongspecialadministrativeregionofchina
AT tselaiyin massmeaslesimmunizationcampaignexperienceinthehongkongspecialadministrativeregionofchina