#flavivirus — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #flavivirus, aggregated by home.social.
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#Italy, Integrated #Surveillance for #WNV & #USUV - Weekly Bulletin No. 10, 18 September '25 (Summary), https://etidiohnew.blogspot.com/2025/09/italy-integrated-surveillance-for-wnv_18.html
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#Italy, Integrated #Surveillance for #WNV & #USUV - Weekly Bulletin No. 9, 11 September '25 (summary): 80 new cases, https://etidiohnew.blogspot.com/2025/09/italy-integrated-surveillance-for-wnv.html
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#Italy, #WNV: a 80 years-old man died of #neuroinvasive form of disease, the eight #fatal case in #Latium Region, https://www.ilsole24ore.com/art/west-nile-muore-80enne-aprilia-e-ottavo-lazio-AHbKvI8B https://www.ilsole24ore.com/art/west-nile-muore-80enne-aprilia-e-ottavo-lazio-AHbKvI8B
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#Italy, rapid surge in #WNV neuroinvasive disease and West Nile Fever in Latium and Campania Regions, with 58 confirmed cases of which nine were fatal, https://www.ilsole24ore.com/art/west-nile-altro-morto-caserta-e-nono-italia-AHPZZgyB
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#Italy, #Toscana virus infected an elderly resident in a small town near #Padua, the 2nd case in the area, https://www.ilgazzettino.it/schede/toscana_virus_anziano_grave_lozzo_atestino_padova-8949136.html
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#Italy reported instances of #Dengue and #Chikungunya autochthonous cases in recent weeks, experts' advice to the public and current risk, https://www.ilsole24ore.com/art/dengue-e-chikungunya-mappa-rischio-italia-e-consigli-esperti-AHa2yTeB
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Yellow fever - Region of the #Americas (#WHO D.O.N., May 16 '25), https://etidiohnew.blogspot.com/2025/05/yellow-fever-region-of-americas-who-don.html
#arbovirus #flavivirus #brazil #colombia #peru #bolivia #mosquitoes
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#Neurotropic #Tick-Borne #Flavivirus in Alpine #Chamois (Rupicapra rupicapra rupicapra), #Austria, 2017, #Italy, 2023, https://etidiohnew.blogspot.com/2025/01/neurotropic-tick-borne-flavivirus-in.html
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#Italy, #traveler from #DRC tested negative after molecular diagnostics performed, https://www.iltirreno.it/lucca/cronaca/2024/12/20/news/lucca-test-negativi-sul-paziente-rientrato-dal-congo-1.100635824
Patient was negative for #Alphavirus, #Flavivirus, #RVF, #Lassa, #influenza A, influenza B, #SARS-CoV-2, #rhinovirus, NL63, 229E, OC43 e HKU1, PIV 1, 2, 3 e 4, #metapneumovirus A/B, #bocavirus, #RSV A/B, #adenovirus, #parechovirus, Borrelia spp, Borrelia recurrentis, Borrelia duttoni, Borrelia TBRF group, Bartonella spp, Erlichia spp, Rickettsia spp, virus del morbillo, Plasmodium spp.
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#Usutu virus African 3.1 #lineage, #Portugal, 2021-2023
Source: BioRxIV, https://www.biorxiv.org/content/10.1101/2024.12.04.626753v1?rss=1
Abstract
Background: Usutu virus (Orthoflavivirus usutuense, USUV), a neurotropic arthropod-borne RNA virus of the family Flaviviridae, is a zoonotic virus that has spread throughout the European continent over the last three decades, since its emergence in Italy in 1996. However, no cases of USUV have been reported in Portugal so far.
Material and methods: In the scope of an active surveillance program for Orthoflavivirus, we collected growing feather samples from 249 red-legged partridges (Alectoris rufa) hunted in southern Portugal during the 2021-2023 hunting seasons. Samples positive for USUV were subjected to whole genome sequencing and strain characterization.
Results: Two partridges tested positive for USUV. Phylogenetic analyses of whole and partial genomes assigned the USUV strains to the African 3 lineage, specifically the African 3.1 sub-lineage.
Conclusions: Our study confirms, for the first time, the circulation of USUV in wild birds in Portugal. Active surveillance of hunted partridges proved to be a useful, accessible, and cost-effective method for USUV monitoring, further supporting their value as effective sentinels for Orthoflavivirus surveillance. Given the ongoing circulation of USUV and the increasing risk of its spillover to other domestic and wild animals, and humans, additional efforts are needed to improve virus surveillance in Portugal from a One Health perspective.
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#abstract #ARBOVIRUS #FLAVIVIRUS #PORTUGAL #research #USUTUVIRUS #WILDBIRDS
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Postdoc position in Virology and CryoEM
Institut Pasteur
Do you want to study viruses by CryoEM @PasteurVirology ❄️🔬? Do you love art, food, history 🎭🍷🏰 and #Flavivirus? We are hiring! @jogio95
See the full job description on jobRxiv: https://jobrxiv.org/job/institut-pasteur-27778-postdoc-position-in-virology-and-cryoem/?feed_id=71182
#Antibody #cryo_EM #Cryo_ET #Flavivirus #vaccines #S...
https://jobrxiv.org/job/institut-pasteur-27778-postdoc-position-in-virology-and-cryoem/?feed_id=71182 -
Postdoc position in Virology and CryoEM
Institut Pasteur
Do you want to study viruses by CryoEM @PasteurVirology ❄️🔬? Do you love art, food, history 🎭🍷🏰 and #Flavivirus? We are hiring! @jogio95
See the full job description on jobRxiv: https://jobrxiv.org/job/institut-pasteur-27778-postdoc-position-in-virology-and-cryoem/?feed_id=69776
#Antibody #Cryo_EM #Cryo_ET #Flavivirus #vaccines #S...
https://jobrxiv.org/job/institut-pasteur-27778-postdoc-position-in-virology-and-cryoem/?feed_id=69776 -
#HK CHP investigates (2nd) imported case of #Zika Virus #Infection (a collateral of the earlier detected case this week), https://www.info.gov.hk/gia/general/202311/17/P2023111700576.htm #arbovirus #flavivirus
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#Italy, a #fatal case of #dengue fever reported in #Tuscany Region: a 50 years old woman returned from a foreign country, https://www.iltirreno.it/empoli/cronaca/2023/11/16/news/dengue-fucecchio-donna-muore-1.100422547 #arbovirus #flavivirus #climatecrisis
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#HK #CHP investigates imported case of #Zika Virus #Infection https://www.info.gov.hk/gia/general/202311/15/P2023111500604.htm #arbovirus #flavivirus
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#Italy, the number of autochthonous #Dengue fever cases rises to sixty-six, according the High Institute of Health, adding that the epidemic is in ''in evolution'', https://www.ilfattoquotidiano.it/2023/10/25/dengue-i-dati-delliss-casi-autoctoni-salgono-a-66-la-trasmissione-e-in-evoluzione/7333909/ #flavivirus #mosquitoes #EIDs #europe #climatecrisis #news
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#Dengue - #Chad, first occurrence in the country, #WHO D.O.N., https://www.who.int/emergencies/disease-outbreak-news/item/2023-DON491 #flavivirus #arbovirus #mosquitoes #EIDs #report
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#Zika Virus #References (by AMEDEO, September 24 ’23),
https://etidioh.wordpress.com/2023/09/24/zika-virus-references-by-amedeo-september-24-23/ #research #science #library #arbovirus #flavivirus #EIDs #mosquitoes -
#Italy, locally-acquired #Dengue fever cases detected in more locations: 2 patients are hospitalized at the Spallanzani Institute of Roma. 309 are under surveillance in #Lodi province, and one case has been reported in #Prato, Tuscani; https://www.ilfattoquotidiano.it/2023/08/29/dengue-due-ricoverati-allo-spallanzani-di-roma-nel-lodigiano-screening-309-persone-un-caso-accertato-a-prato/7274922/ #arbovirus #flavivirus #mosquitoes #news
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...and now "flavi-like viruses" in plants! 😲
"More recently flavi-like divergent viruses have been identified in marine invertebrate and vertebrate hosts."
"The striking discovery of gentian Kobu-sho-associated virus (GKaV) expanded the host range of #flavivirus to plants, which was complemented by a recently reported flavi-like virus in carrot."
"Two novel flavi-like viruses shed light on the plant-infecting koshuviruses"
https://www.biorxiv.org/content/10.1101/2023.02.06.527325v1
#virus #virology -
The above ☝️ study from Slovakia had to contend with three different geographically co-circulating flaviviruses: West Nile Virus, Usutu Virus, and Tick-Borne Encephalitis #Virus.
For comparison, here's a study from the Amazon, looking at cross-reactivity among three different #flavivirus: Dengue Virus, Yellow Fever Virus, and Zika Virus.
"Antibody cross-reactivity and evidence of susceptibility to emerging Flaviviruses in the dengue-endemic Brazilian Amazon"
https://doi.org/10.1016/j.ijid.2023.01.033
#virology -
Have you ever had a weak positive test for West Nile #virus only to test negative on a subsequent test?
One recurring problem with #epidemiology of #flavivirus #InfectiousDisease is that antibody tests for one flavivirus happen to be highly crossreactive with other flaviviruses.
That is a problem addressed in:
"Co-Circulation of West Nile, Usutu, and Tick-Borne Encephalitis Viruses in the Same Area: A Great Challenge for Diagnostic and Blood and Organ Safety"
https://www.mdpi.com/1999-4915/15/2/366
@virology -
Ilheus #virus is a poorly known mosquito-transmitted neurotropic #flavivirus that can cause serious brain infections.
Like some other neurotropic viruses, it is no longer detectable in blood once the symptoms have begun.
A new meta-analysis aimed to quantify how common it is and found that in Brazil approximately 8% of the population showed serological exposure.
"Clinical Landscape and Rate of Exposure to Ilheus Virus: Insights from Systematic Review and Meta-Analysis"
https://doi.org/10.3390/v15010092 -
4/13
Now, many RNA viruses have a viral protein called a #viroporin, which creates pores in membranes such as the endoplasmic reticulum.In some viruses, such as an #enterovirus, the viroporin is well-known. (2B protein)
In other viruses, the viroporin is better known for something else, as the viroporin function is not well appreciated.
For example, in a #flavivirus, the NS2A protein is known as a capsid-assembly protein. Its function as a viroporin is less well-known.https://doi.org/10.1080/21505594.2017.1356540
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-Time for a short #Introduction-
I am a group leader in #MedicinalChemistry at the University of Parma. My lab combines #chemical & #computational techniques to develop novel pharmacological tools to study different Chronic Diseases (#CysticFibrosis, #IBD, #Hypercholesterolemia, #Alzheimer, #Cancer) and Infective Agents (#SARSCoV2, #Enterovirus, #Flavivirus, #Monkeypox, #HIV).
We are particularly interested in the development of #MultiTarget inhibitors and open to new #collaborations in #DrugDiscovery.
#Tooting (sooner or later) about the #chemistry and #science