Evidence map›Paper›PMID 31531630›Full record

ArticleRevista do Instituto de Medicina Tropical de Sao Paulo2019

Malaria elimination in Bhutan: asymptomatic malaria cases in the Bhutanese population living in malaria-risk areas and in migrant workers from India.

Sonam Wangchuk, Sonam Gyeltshen, Kunzang Dorji, Tenzin Wangdi, Tobgyel Dukpa, Rinzin Namgay, Sithar Dorjee, Tashi Tobgay, Wanna Chaijaroenkul, Kesara Na-Bangchang

Open access · diamondAbstract read
In one paragraph

Article in Revista do Instituto de Medicina Tropical de Sao Paulo, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

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

10 authors at 3 institutions in 2 countries.

Sonam WangchukBhutan Ministry of Health, Royal Center for Disease Control, Thimphu, Bhutan.
Sonam GyeltshenBhutan Ministry of Health, Royal Center for Disease Control, Thimphu, Bhutan.
Kunzang DorjiBhutan Ministry of Health, Royal Center for Disease Control, Thimphu, Bhutan.
Tenzin WangdiBhutan Ministry of Health, Department of Public Health, Vector Borne Disease Control Programme, Thimphu, Bhutan.
Tobgyel DukpaBhutan Ministry of Health, Department of Public Health, Vector Borne Disease Control Programme, Thimphu, Bhutan.
Rinzin NamgayBhutan Ministry of Health, Department of Public Health, Vector Borne Disease Control Programme, Thimphu, Bhutan.
Sithar DorjeeBhutan Agriculture and Food Regulatory Authority, Thimphu, Bhutan.
Tashi TobgayKhesar Gyalpo University of Medical Science, Thimphu, Bhutan.
Wanna ChaijaroenkulThammasat University, Cholangiocarcinoma, Chulabhorn International College of Medicine, Center of Excellence in Pharmacology and Molecular Biology of Malaria, Pathumthani, Thailand.
Kesara Na-BangchangThammasat University, Cholangiocarcinoma, Chulabhorn International College of Medicine, Center of Excellence in Pharmacology and Molecular Biology of Malaria, Pathumthani, Thailand.ORCID http://orcid.org/0000-0001-6389-0897
Royal Centre for Disease Control · BTKhesar Gyalpo University of Medical Sciences of Bhutan · BTThammasat University · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In 2018, Bhutan reported 54 cases of malaria, of which six were indigenous, 14 introduced and 34 imported. Considering the continuous reduction in the number of indigenous cases, Bhutan plans to eliminate malaria by 2025 under the Bhutan Malaria Elimination Strategy. The study was conducted to assess the presence of asymptomatic plasmodial infection in both, Bhutanese population living in malaria-risk areas and in migrant workers to guide the elimination strategies. A cross-sectional study was conducted from April to May 2016 in 750 Bhutanese people and 473 migrant workers. Plasmodium falciparum and Plasmodium vivax infections were investigated by using a rapid diagnostic test (RDT) and the polymerase chain reaction (PCR). Prevalence of asymptomatic plasmodial infection based on PCR was 0.27% (95% CI: 0.05-1.07%) among Bhutanese people with a mean age of 43 years old. The proportions of males and females were 45% and 55%, respectively. Among migrant workers, the prevalence of asymptomatic plasmodial infection was 0.42% (95% CI: 0.07-1.69%) with a mean age of 30 years old. The majority of migrant workers were from the neighboring Indian State of West Bengal (57.51%), followed by Assam (12.26%). RDT in both study groups did not detect any plasmodial infection. The presence of a low prevalence of asymptomatic plasmodial infection indicates that the current elimination strategies and interventions are effective.

Indexed as

Asymptomatic InfectionsBhutanCross-Sectional StudiesFemaleHumansIndiaMalaria, FalciparumMalaria, VivaxMalePolymerase Chain ReactionPrevalenceTransients and Migrants

Identifiers

PMID31531630
PMCPMC6746194
OpenAlexW2972932589

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.