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Studies into the mechanism of measles-associated immune suppression during a measles outbreak in the Netherlands.

ABSTRACT: Measles causes a transient immune suppression, leading to increased susceptibility to opportunistic infections. In experimentally infected non-human primates (NHPs) measles virus (MV) infects and depletes pre-existing memory lymphocytes, causing immune amnesia. A measles outbreak in the Dutch Orthodox Protestant community provided a unique opportunity to study the pathogenesis of measles immune suppression in unvaccinated children. In peripheral blood mononuclear cells (PBMC) of prodromal measles patients, we detected MV-infected memory CD4+ and CD8+ T cells and naive and memory B cells at similar levels as those observed in NHPs. In paired PBMC collected before and after measles we found reduced frequencies of circulating memory B cells and increased frequencies of regulatory T cells and transitional B cells after measles. These data support our immune amnesia hypothesis and offer an explanation for the previously observed long-term effects of measles on host resistance. This study emphasises the importance of maintaining high measles vaccination coverage.

SUBMITTER: Laksono BM

PROVIDER: S-EPMC6251901 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Studies into the mechanism of measles-associated immune suppression during a measles outbreak in the Netherlands.

Laksono Brigitta M BM de Vries Rory D RD Verburgh R Joyce RJ Visser Eline G EG de Jong Alwin A Fraaij Pieter L A PLA Ruijs Wilhemina L M WLM Nieuwenhuijse David F DF van den Ham Henk-Jan HJ Koopmans Marion P G MPG van Zelm Menno C MC Osterhaus Albert D M E ADME de Swart Rik L RL

Nature communications 20181123 1

Measles causes a transient immune suppression, leading to increased susceptibility to opportunistic infections. In experimentally infected non-human primates (NHPs) measles virus (MV) infects and depletes pre-existing memory lymphocytes, causing immune amnesia. A measles outbreak in the Dutch Orthodox Protestant community provided a unique opportunity to study the pathogenesis of measles immune suppression in unvaccinated children. In peripheral blood mononuclear cells (PBMC) of prodromal measle ...[more]

PMID: 30470742

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Project description:BackgroundTo understand operational challenges involved with responding to US measles outbreaks in 2017-19 and identify applicable lessons in order to inform preparedness and response operations for future outbreaks, particularly with respect to specific operational barriers and recommendations for outbreak responses among insular communities.MethodsFrom August 2019 to January 2020, we conducted 11 telephone interviews with 18 participants representing state and local health departments and community health centers that responded to US measles outbreaks in 2017-19, with a focus on outbreaks among insular communities. We conducted qualitative, thematic coding to identify and characterize key operational challenges and lessons identified by the interviewees.ResultsWe categorized principal insights into 5 topic areas: scale of the response, vaccination operations, exclusion policies, community engagement, and countering anti-vaccine efforts. These topics address resource-intensive aspects of these outbreak responses, including personnel demands; guidance needed to support response operations and reduce transmission, such as excluding exposed or at-risk individuals from public spaces; operational challenges and barriers to vaccination and other response activities; and effectively engaging and educating affected populations, particularly with respect to insular and vulnerable communities.ConclusionsMeasles outbreak responses are resource intensive, which can quickly overwhelm existing public health capacities. Early and effective coordination with trusted leaders and organizations in affected communities, including to provide vaccination capacity and facilitate community engagement, can promote efficient response operations. The firsthand experiences of public health and healthcare personnel who responded to measles outbreaks, including among insular communities, provide evidence-based operational lessons that can inform future preparedness and response operations for outbreaks of highly transmissible diseases.

Dataset Information

Studies into the mechanism of measles-associated immune suppression during a measles outbreak in the Netherlands.

Publications

Studies into the mechanism of measles-associated immune suppression during a measles outbreak in the Netherlands.

Similar Datasets

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