Evidence map›Paper›PMID 25826297›Full record

ArticlePLoS neglected tropical diseases2015

Evaluation of inapparent dengue infections during an outbreak in Southern China.

Tao Wang, Man Wang, Bo Shu, Xue-qin Chen, Le Luo, Jin-yu Wang, Yong-zhuang Cen, Benjamin D Anderson, Mary M Merrill, Hunter R Merrill and 1 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
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  13. From the threat to the large outbreak: dengue on Reunion Island, 2015 to 2018.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2019
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  18. Modeling the Heterogeneity of Dengue Transmission in a City.International journal of environmental research and public health · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 2 countries.

Tao WangZhongshan Center for Disease Control and Prevention, Zhongshan, China; Zhongshan Institute of the School of Public Health, Sun Yat-sen University, Zhongshan, China.
Man WangZhongshan Center for Disease Control and Prevention, Zhongshan, China.
Bo ShuZhongshan Center for Disease Control and Prevention, Zhongshan, China.
Xue-qin ChenZhongshan Center for Disease Control and Prevention, Zhongshan, China.
Le LuoZhongshan Center for Disease Control and Prevention, Zhongshan, China.
Jin-yu WangZhongshan Center for Disease Control and Prevention, Zhongshan, China.
Yong-zhuang CenZhongshan Center for Disease Control and Prevention, Zhongshan, China.
Benjamin D AndersonDivision of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America.
Mary M MerrillDepartment of Environmental & Global Health, College of Public Health & Health Professions, University of Florida, Gainesville, Florida, United States of America.
Hunter R MerrillDepartment of Statistics, College of Liberal Arts & Sciences, University of Florida, Gainesville, Florida, United States of America.
Jia-hai LuZhongshan Institute of the School of Public Health, Sun Yat-sen University, Zhongshan, China; School of Public Health, Sun Yat-sen University, Guangzhou, China.
Sun Yat-sen University · CNUniversity of Florida · USDuke University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Few studies evaluating inapparent dengue virus (DENV) infections have been conducted in China. In 2013, a large outbreak of DENV occurred in the city of Zhongshan, located in Southern China, which provided an opportunity to assess the clinical spectrum of disease. During the outbreak, an investigation of 887 index case contacts was conducted to evaluate inapparent and symptomatic DENV infections. Post-outbreak, an additional 815 subjects from 4 towns with, and 350 subjects from 2 towns without reported autochthonous DENV transmission, as determined by clinical diagnosis, were evaluated for serological evidence of dengue IgG antibodies. Between July and November 2013, there were 19 imported and 809 autochthonous dengue cases reported in Zhongshan. Of 887 case contacts enrolled during the outbreak, 13 (1.5%) exhibited symptomatic DENV infection, while 28 (3.2%) were inapparent. The overall I:S ratio was 2.2:1 (95% CI: 1.1-4.2:1). Post-outbreak serological data showed that the proportion of DENV IgG antibody detection from the 4 towns with and the 2 towns without reported DENV transmission was 2.7% (95% CI: 1.6%-3.8%) and 0.6% (95% CI: 0-1.4%), respectively. The I:S ratio in the 3 towns where clinical dengue cases were predominately typed as DENV-1 was 11.0:1 (95% CI: 3.7-∞:1). The ratio in the town where DENV-3 was predominately typed was 1.0:1 (95% CI: 0.5-∞:1). In this cross-sectional study, data suggests a high I:S ratio during a documented outbreak in Zhongshan, Southern China. These results have important implications for dengue control, implying that inapparent cases might influence DENV transmission more than previously thought.

Indexed as

Asymptomatic InfectionsChinaCross-Sectional StudiesDengueDengue VirusDisease OutbreaksHumansImmunoglobulin GImmunoglobulin G

Identifiers

PMID25826297
PMCPMC4380470
OpenAlexW2056483037

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.