Evidence map›Paper›PMID 33482887›Full record

ArticleParasites & vectors2021

The common European mosquitoes Culex pipiens and Aedes albopictus are unable to transmit SARS-CoV-2 after a natural-mimicking challenge with infected blood.

Claudia Fortuna, Fabrizio Montarsi, Francesco Severini, Giulia Marsili, Luciano Toma, Antonello Amendola, Michela Bertola, Alice Michelutti, Silvia Ravagnan, Gioia Capelli and 3 more

Abstract read
In one paragraph

Article in Parasites & vectors, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. The Common Mosquito (Frontiers in veterinary science · 2022
    Article
  7. Review
  8. Article
  9. 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

13 authors.

Claudia Fortuna *Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy. claudia.fortuna@iss.it.
Fabrizio Montarsi *Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy.
Francesco SeveriniDepartment of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
Giulia MarsiliDepartment of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
Luciano TomaDepartment of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
Antonello AmendolaDepartment of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
Michela BertolaIstituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy.
Alice MicheluttiIstituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy.
Silvia RavagnanIstituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy.
Gioia CapelliIstituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy.
Giovanni RezzaDepartment of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
Marco Di LucaDepartment of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
the Working Group

Funding

Horizon 2020 874735
6 · The paper itself

Abstract

backgroundOn 11 March 2020, the World Health Organisation (WHO) declared the coronavirus disease 2019 (COVID-19) outbreak to be a pandemic. As the mosquito season progressed, the understandable concern that mosquitoes could transmit the virus began to increase among the general public and public health organisations. We have investigated the vector competence of Culex pipiens and Aedes albopictus, the two most common species of vector mosquitoes in Europe, for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Due to the very unusual feeding behaviour of Ae. albopictus, we also evaluated the role of this mosquito in a potential mechanical transmission of the virus.

methodsFor the vector competence study, mosquitoes were allowed to take several infectious blood meals. The mosquitoes were then collected and analysed at 0, 3, 7 and 10 days post-feeding. For the mechanical transmission test, Ae. albopictus females were allowed to feed for a short time on a feeder containing infectious blood and then on a feeder containing virus-free blood. Both mosquitoes and blood were tested for viral presence.

resultsCulex pipiens and Ae. albopictus were found not be competent vectors for SARS-CoV-2, and Ae. albopictus was unable to mechanically transmit the virus.

conclusionsThis is the first study to show that the most common species of vector mosquitoes in Europe do not transmit SARS-CoV-2 and that Ae. albopictus is unable to mechanically transmit the virus from a positive host to a healthy host through host-feeding.

Indexed as

AedesAnimalsBloodCOVID-19CulexEuropeFemaleMosquito VectorsReal-Time Polymerase Chain ReactionRNA, ViralSARS-CoV-2SheepRNA, ViralAedes albopictusCulex pipiensMechanical transmissionSARS-CoV-2Vector competence

Identifiers

PMID33482887
PMCPMC7821838

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.