Open AccessOutbreak of Measles in a Residential Home for the Intellectually Disabled in Singapore in 2019
Author(s) -
Valerie T J Koh,
Calvin J. Chiew,
Sean Wei Xiang Ong,
Khine Nandar,
Anne Lee,
Kelly Foo,
Lin Cui,
Yi Kai Ng,
Rachael Pung,
Tau Hong Lee,
Zubaidah Said,
Raymond Tzer Pin Lin,
David Chien Lye,
Yee-Sin Leo,
Ver Lee
Publication year - 2020
Publication title -
american journal of public health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.284
H-Index - 264
eISSN - 1541-0048
pISSN - 0090-0036
DOI - 10.2105/ajph.2020.305820
Subject(s) - measles , outbreak , medicine , transmission (telecommunications) , vaccination , demography , population , herd immunity , environmental health , confidence interval , pediatrics , gerontology , immunology , virology , electrical engineering , sociology , engineering
A measles outbreak involving 19 adults in a home for the intellectually disabled occurred in Singapore in 2019. Further investigation, including a serological survey, was conducted. Mass vaccination and infection control measures were implemented, terminating further secondary transmission. Seropositivity among residents aged 40 to 49 years (90.7%; 95% confidence interval = 78.4%, 96.3%) was lower than among the Singapore adult population ( P < .001). This sheltered population, like others previously reported in the literature, had lower measles immunity than the general community, possibly because of limited social interaction. Targeted catch-up vaccination for similarly vulnerable populations should be considered.
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