Evidence map›Paper›PMID 35276354›Full record

ArticleTravel medicine and infectious disease

Asymptomatic malaria infection at the China-Vietnam border: Knowledge and implications for the cross-border migrant population during the COVID-19 pandemic.

Hong Tu, Jun Feng, Chenghang Yu, Kangming Lin, Wang Peiyu, Xiang Shaomi, Luo Lingyun, Li Jian

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Travel medicine and infectious disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 25% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Asymptomatic/submicroscopicParasite epidemiology and control · 2025
    Article
  3. Article
  4. Article
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

8 authors at 4 institutions in 1 country.

Hong TuNational Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, Shanghai, PR China.
Jun FengShanghai Municipal Center for Disease Control and Prevention, Shanghai, PR China. Electronic address: fengjun@scdc.sh.cn.
Chenghang YuNational Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, Shanghai, PR China.
Kangming LinInstitute of Parasitic Diseases, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Guangxi, PR China.
Wang PeiyuNingming County Center for Disease Control and Prevention, Ningming, Guangxi, PR China.
Xiang ShaomiNingming County Center for Disease Control and Prevention, Ningming, Guangxi, PR China.
Luo LingyunNingming County Center for Disease Control and Prevention, Ningming, Guangxi, PR China.
Li JianNingming County Center for Disease Control and Prevention, Ningming, Guangxi, PR China.
Ningbo Center for Disease Control and Prevention · CNNational Institute for Parasitic Diseases · CNGuangxi Center for Disease Prevention and Control · CNShanghai Municipal Center For Disease Control Prevention · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEliminating malaria along the China-Vietnam border remains one of the greatest challenges in China, especially during the coronavirus disease 2019 (COVID-19) pandemic, which has disrupted the continuity of malaria control and elimination programs. Understanding the factors associated with asymptomatic malaria infection will inform control interventions aimed at elimination of the disease among migrants from Vietnam working in China, who constitute an at-risk population.

methodsFrom March 2018 to September 2019, 108 migrants from Vietnam working in Ningming County, Guangxi, were enrolled in this study. Each person was interviewed using a structured questionnaire. Blood samples were collected and sent for PCR detection and sequencing. The obtained sequences were analyzed using the BLAST program and DNAMAN software.

resultsThe proportion of participants with malaria knowledge was low, with 19.4% (21/108) reporting knowledge about transmission, 23.2% (25/108) reporting knowledge about clinical symptoms, 7.4% (8/108) reporting awareness of the risk of death and 14.8% (16/108) reporting awareness of prevention methods. No significant difference in the malaria knowledge rate was found among occupational groups, except in the migrant worker group, whose knowledge rate was higher than those in the other occupational groups (χ

conclusionHealth education focused on high-risk populations, such as migrant workers and forest goers, should be strengthened. Verbal communication and information transmission via the internet, radio, and mobile phone platforms may be required during the COVID-19 pandemic. Further risk assessments and proactive case detection should also be performed in Ningming County and other border counties in Guangxi to detect active and asymptomatic infections in a timely manner and prevent re-establishment of the disease in these communities.

Indexed as

COVID-19MalariaMalaria, FalciparumMalaria, VivaxTransients and MigrantsAsymptomatic InfectionsChinaHumansPandemicsPlasmodium vivaxVietnamAsymptomaticHealth educationKnowledgeMalariaThe China-Vietnam border

Identifiers

PMID35276354
PMCPMC8902057
OpenAlexW4220792781

What OpenQuestion holds

Textmetadata
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.