Evidence map›Paper›PMID 25403988›Full record

ArticleParasites & vectors2014

A city park as a potential epidemic site of scrub typhus: a case-control study of an outbreak in Guangzhou, China.

Yuehong Wei, Lei Luo, Qinlong Jing, Xiaoning Li, Yong Huang, Xincai Xiao, Lan Liu, Xinwei Wu, Zhicong Yang

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
1.1field-weighted citation impact, top 26% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Global and regional seroprevalence, incidence, mortality of, and risk factors for scrub typhus: A systematic review and meta-analysis.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2024
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  17. Outer Membrane Protein A Conservation amongTropical medicine and infectious disease · 2018
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  19. A review of the global epidemiology of scrub typhus.PLoS neglected tropical diseases · 2017
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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

9 authors at 2 institutions in 2 countries.

Yuehong WeiGuangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, China. wei_yh0928@163.com.
Lei LuoGuangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, China. llyeyq@163.com.
Qinlong JingGuangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, China. jingqinlong@126.com.
Xiaoning LiSchool of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong Province, China. ningqzone@163.com.
Yong HuangGuangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, China. hyang5556@163.com.
Xincai XiaoGuangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, China. crbfzk@gzcdc.org.cn.
Lan LiuGuangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, China. liulan728@163.com.
Xinwei WuGuangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, China. tom.wu@tom.com.
Zhicong YangGuangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, China. yangzc@gzcdc.org.cn.
Centers for Disease Control and Prevention · USGuangdong Pharmaceutical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundScrub typhus is an important public health problem in China, especially in Guangzhou city. Typical outbreaks of scrub typhus have been previously reported in rural areas, affecting mainly farmers. We describe an atypical outbreak of the disease with case fatalities, from a park in Haizhu District, Guangzhou, that could turn out to be a potential scrub typhus epidemic site.

methodsFrom May 2012 to June 2012, a case-control study was conducted to identify source and risk factors of this outbreak. Reported cases of scrub typhus in Xiaogang Park were confirmed by Weil-Felix test or a nested polymerase chain reaction (NPCR). Controls were matched with their neighbors by gender and age. Multivariate conditional logistic regression was used to identify risk factors and protective factors.

resultsA total of 29 cases were confirmed by Weil-Felix test, including 4 deaths by both Weil-Felix test and NPCR. All patients presented with fever (100%), while 28 (96.6%) cases had eschars, 10 (34.5%) headache, 10 (34.5%) chills, 6 (20.7%) lymphadenopathy, 5 (17.2%) rash, 2 (6.9%) vomiting and 1 (3.5%) presented with conjunctival congestion. The proportion of cases with activity history in Xiaogang Park was much higher than the control group (72.4% vs 24.1%, P < 0.001), and morning exercise in park or field was also as a risk factor for scrub typhus (adjusted OR = 3.0, 95% CI: 1.1-8.2). Four factors were significantly associated with the risk of developing scrub typhus: sitting on the lawn (adjusted OR = 8.0, 95% CI: 1.4-44.5), close contact with rats (adjusted OR = 3.3, 95% CI: 1.2-9.6), sitting near the rat holes (OR = 6.8, 95% CI: 1.2-38.1) and wearing long-sleeved clothing when outside (adjusted OR = 0.3, 95% CI: 0.1-0.7).

conclusionsWe confirmed an atypical outbreak of scrub typhus in a park in Guangzhou city, which has the potential to develop into an important epidemic site. This public health risk should not be neglected and requires more attention from authorities.

Indexed as

AdultAgedAged, 80 and overAnimalsCase-Control StudiesChinaDisease OutbreaksFemaleHumansMaleMiddle AgedRatsRetrospective StudiesRisk FactorsScrub TyphusYoung Adult

Identifiers

PMID25403988
PMCPMC4240828
OpenAlexW2146444186

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.