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Sandfly-Borne Phleboviruses in Portugal: Four and Still Counting

Fátima Amaro1,2, Líbia Zé-Zé1,3, Maria João Alves1,2

  • 1INSA-Centre for Vectors and Infectious Diseases Research, National Institute of Health Doutor Ricardo Jorge, Avenida da Liberdade n.-5, 2965-575 Águas de Moura, Portugal.

Viruses
|August 26, 2022
PubMed

Insights

Phleboviruses carried by sandflies are a growing concern in Portugal. This study highlights known phlebovirus species and their impact on human and animal health, emphasizing the need for further research.

Area of Science:

  • Medical Entomology
  • Virology
  • Public Health

Background:

  • Phleboviruses, transmitted by phlebotomine sandflies, comprise 66 known species globally.
  • Over 40 phlebovirus species are associated with sandflies, with some identified as significant pathogens.
  • Data on sandfly-borne phleboviruses in Portugal is limited, leading to underdiagnosis of associated diseases.

Purpose of the Study:

  • To consolidate existing knowledge on phleboviruses circulating in Portugal.
  • To increase awareness regarding sandfly-borne phleboviruses and their potential health implications.
  • To identify gaps in current research on phleboviruses in the region.

Main Methods:

  • Literature review and data compilation on phlebovirus isolations and detections in Portugal.
  • Analysis of reported human and animal infections attributed to phleboviruses.
  • Identification of phlebovirus species detected in sandfly populations within Portugal.

Main Results:

  • Massilia and Alcube phleboviruses have been isolated from sandflies in southern Portugal.
  • Human infections caused by Toscana and Sicilian phleboviruses have been documented.
  • Seroprevalence studies indicate the presence of phleboviruses in domestic animals like cats and dogs.

Conclusions:

  • Sandfly-borne phleboviruses are present in Portugal, with documented circulation in both vectors and hosts.
  • Further research is crucial to ascertain the public health impact of entomologically detected phleboviruses.
  • Understanding the full significance of recognized phlebopathogens in Portugal requires continued investigation.
Keywords:
Portugalphlebovirusessandflies

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