ArticleInfluenza and other respiratory viruses2021
The COVID-19 epidemic in Madagascar: clinical description and laboratory results of the first wave, march-september 2020.
Article in Influenza and other respiratory viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.
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Who cites it
19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.
- Asymptomatic viruses detectable in saliva in the first year of life: a narrative review.Pediatric research · 2024Pooled it
- Asymptomatic SARS-CoV-2 infection: A systematic review and meta-analysis.Proceedings of the National Academy of Sciences of the United States of America · 2021Pooled it
- Patterns of Rising HIV Positivity in Northern Madagascar: Evidence of an Urgent Public Health Concern.Tropical medicine and infectious disease · 2024Article
- A multi-site cross-sectional study on the burden of SARS-CoV-2 in healthcare workers in Madagascar.PloS one · 2024Article
- IMPACT OF COVID-19 ON PEOPLE LIVING WITH HIV IN MADAGASCAR: A SARS-COV2 SERO-PREVALENCE SURVEY.African journal of infectious diseases · 2024Article
- Sociodemographic Variables Can Guide Prioritized Testing Strategies for Epidemic Control in Resource-Limited Contexts.The Journal of infectious diseases · 2023Article
- Excess mortality associated with the COVID-19 pandemic during the 2020 and 2021 waves in Antananarivo, Madagascar.BMJ global health · 2023Article
- Linear epitope mapping of the humoral response against SARS-CoV-2 in two independent African cohorts.Scientific reports · 2023Article
- Epidemiological Patterns of Seasonal Respiratory Viruses during the COVID-19 Pandemic in Madagascar, March 2020-May 2022.Viruses · 2022Article
- SARS-CoV-2 infection rate in Antananarivo frontline health care workers, Madagascar.Influenza and other respiratory viruses · 2022Article
- Clinical presentation of COVID-19 at the time of testing and factors associated with pre-symptomatic cases in Cameroon.IJID regions · 2022Article
- Global influenza surveillance systems to detect the spread of influenza-negative influenza-like illness during the COVID-19 pandemic: Time series outlier analyses from 2015-2020.PLoS medicine · 2022Article
- Cross-sectional cycle threshold values reflect epidemic dynamics of COVID-19 in Madagascar.Epidemics · 2022Article
- Household transmission of COVID-19 among the earliest cases in Antananarivo, Madagascar.Influenza and other respiratory viruses · 2022Article
- The basic reproduction number of COVID-19 across Africa.PloS one · 2022Article
- Full GenomeFrontiers in public health · 2022Article
- Metagenomic Pathogen Sequencing in Resource-Scarce Settings: Lessons Learned and the Road Ahead.Frontiers in epidemiology · 2022Article
- The COVID-19 epidemic in Madagascar: clinical description and laboratory results of the first wave, march-september 2020.Influenza and other respiratory viruses · 2021Article
- International air travel-related control measures to contain the Covid-19 pandemic: A companion review to a Cochrane rapid review.New microbes and new infectionsReview
Corrections and comments
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Authors and funding
30 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundFollowing the first detection of SARS-CoV-2 in passengers arriving from Europe on 19 March 2020, Madagascar took several mitigation measures to limit the spread of the virus in the country.
methodsNasopharyngeal and/or oropharyngeal swabs were collected from travellers to Madagascar, suspected SARS-CoV-2 cases and contact of confirmed cases. Swabs were tested at the national reference laboratory using real-time RT-PCR. Data collected from patients were entered in an electronic database for subsequent statistical analysis. All distribution of laboratory-confirmed cases were mapped, and six genomes of viruses were fully sequenced.
resultsOverall, 26,415 individuals were tested for SARS-CoV-2 between 18 March and 18 September 2020, of whom 21.0% (5,553/26,145) returned positive. Among laboratory-confirmed SARS-CoV-2-positive patients, the median age was 39 years (IQR: 28-52), and 56.6% (3,311/5,553) were asymptomatic at the time of sampling. The probability of testing positive increased with age with the highest adjusted odds ratio of 2.2 [95% CI: 1.9-2.5] for individuals aged 49 years and more. Viral strains sequenced belong to clades 19A, 20A and 20B indicative of several independent introduction of viruses.
conclusionsOur study describes the first wave of the COVID-19 in Madagascar. Despite early strategies in place Madagascar could not avoid the introduction and spread of the virus. More studies are needed to estimate the true burden of disease and make public health recommendations for a better preparation to another wave.
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