Evidence map›Paper›PMID 32512664›Full record

ArticleEpidemiology and health2020

Epidemiological characteristics of and containment measures for COVID-19 in Busan, Korea.

Hyunjin Son, Hyojung Lee, Miyoung Lee, Youngduck Eun, Kyounghee Park, Seungjin Kim, Wonseo Park, Sora Kwon, Byoungseon Ahn, Dongkeun Kim and 1 more

Abstract read
In one paragraph

Article in Epidemiology and health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 10 pooled it
–field-weighted citation impact
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

24 citing papers in PubMed, 10 syntheses or guidelines pooled it.

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  5. Asymptomatic SARS-CoV-2 infection: A systematic review and meta-analysis.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  17. Core policies disparity response to COVID-19 among BRICS countries.International journal for equity in health · 2022
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  20. Subcritical Transmission in the Early Stage of COVID-19 in Korea.International journal of environmental research and public health · 2021
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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.

Hyunjin SonBusan Center for Infectious Disease Control and Prevention, Pusan National University Hospital, Busan, Korea.
Hyojung LeeNational Institute for Mathematical Sciences, Daejeon, Korea.
Miyoung LeeBusan Center for Infectious Disease Control and Prevention, Pusan National University Hospital, Busan, Korea.
Youngduck EunBusan Center for Infectious Disease Control and Prevention, Pusan National University Hospital, Busan, Korea.
Kyounghee ParkBusan Center for Infectious Disease Control and Prevention, Pusan National University Hospital, Busan, Korea.
Seungjin KimBusan Center for Infectious Disease Control and Prevention, Pusan National University Hospital, Busan, Korea.
Wonseo ParkBusan Center for Infectious Disease Control and Prevention, Pusan National University Hospital, Busan, Korea.
Sora KwonBusan Center for Infectious Disease Control and Prevention, Pusan National University Hospital, Busan, Korea.
Byoungseon AhnDivision of Health Policy, Busan Metropolitan City, Busan, Korea.
Dongkeun KimEpidemic Intelligence Officer of Busan Metropolitan City, Busan, Korea.
Changhoon KimBusan Center for Infectious Disease Control and Prevention, Pusan National University Hospital, Busan, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo describe and evaluate epidemiological investigation results and containment measures implemented in Busan, where 108 cases were confirmed with coronavirus disease 2019 (COVID-19) between February 21, 2020 and March 24, 2020.

methodsAny individual who tested positive for COVID-19 was classified as a confirmed case. Measures were taken to identify the source of infection and trace and quarantine contacts. Serial intervals were estimated and the effective reproduction number was computed.

resultsOf the total 18,303 COVID-19 tests performed between January 16, 2020 and March 24, 2020 in Busan, 108 yielded positive results (positive test rate, 0.6%). All confirmed cases were placed in isolation at hospitals. Of the 108 confirmed cases, 59 (54.6%) were female. The most common age group was 20-29 years with 37 cases (34.3%). Regarding symptoms at the time of diagnosis, cough (n=38, 35.2%) and fever (n=34, 31.5%) were most common; 12 cases (11.1%) were asymptomatic. The source of infection was identified in 99 cases (91.7%). A total of 3,223 contacts were identified and quarantined. Household contacts accounted for 196, and the household secondary attack rate was 8.2% (95% confidence interval [CI], 4.7 to 12.9). The mean serial interval was estimated to be 5.54 days (95% CI, 4.08 to 7.01). After February 26, (Rt) remained below 1 in Busan.

conclusionsThe early containment strategy implemented in Busan shows that control is possible if outbreaks are of limited scope. In preparation for future outbreaks, public health and healthcare systems should be re-examined and put in a ready state.

Indexed as

AdolescentAdultAgedChildChild, PreschoolContact TracingCoronavirus InfectionsCOVID-19Disease OutbreaksFemaleHumansInfantInfant, NewbornMaleMiddle AgedPandemicsContainment measureCOVID-19KoreaReproduction number

Identifiers

PMID32512664
PMCPMC7644939

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.