In April 2023, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. The phylum was expanded by one new family, 14 new genera, and 140 new species. Two genera and 538 species were renamed. One species was moved, and four were abolished. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

• Klíčová slova
• Aliusviridae, Arenaviridae, Articulavirales, Artoviridae, Aspiviridae, Bornaviridae, Bunyavirales, Crepuscuviridae, Discoviridae, Filoviridae, Fimoviridae, Goujianvirales, Hantaviridae, ICTV, International Committee on Taxonomy of Viruses, Jingchuvirales, Lispiviridae, Mononegavirales, Muvirales, Mymonaviridae, Myriaviridae, Nairoviridae, Natareviridae, Negarnaviricota, Nyamiviridae, Orthomyxoviridae, Orthornavirae, Paramyxoviridae, Peribunyaviridae, Phasmaviridae, Phenuiviridae, Pneumoviridae, Rhabdoviridae, Riboviria, Serpentovirales, Sunviridae, Tenuivirus, Tosoviridae, Tospoviridae, Tulasviridae, articulaviral, bunyaviral, bunyavirus, goujianviral, megaclassification, megataxonomy, mononegaviral, muviral, negarnaviricot, serpentoviral, virus classification, virus nomenclature, virus taxonomy,
• MeSH
• negativní RNA-viry * MeSH
• RNA-dependentní RNA-polymerasa genetika   MeSH
• RNA-viry * genetika   MeSH
• Publikační typ
• dopisy MeSH
• Research Support, N.I.H., Extramural MeSH
• Research Support, N.I.H., Intramural MeSH
• Research Support, U.S. Gov't, Non-P.H.S. MeSH
• Názvy látek
• RNA-dependentní RNA-polymerasa MeSH

In March 2022, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. The phylum was expanded by two new families (bunyaviral Discoviridae and Tulasviridae), 41 new genera, and 98 new species. Three hundred forty-nine species were renamed and/or moved. The accidentally misspelled names of seven species were corrected. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

• MeSH
• fylogeneze MeSH
• lidé MeSH
• Mononegavirales * genetika   MeSH
• viry * MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH

Antibodies against Phlebotomus perniciosus sandfly salivary gland homogenate (SGH) and recombinant protein rSP03B, sandfly-borne Toscana virus (TOSV), Sandfly Fever Sicilian virus (SFSV) and Leishmania, as well as DNA of the latter parasite, were investigated in 670 blood samples from 575 human donors in Murcia Region, southeast Spain, in 2017 and 2018. The estimated SGH and rSP03B seroprevalences were 69% and 88%, respectively, although correlation between test results was relatively low (ρ = 0.39). Similarly, TOSV, SFSV and Leishmania seroprevalences were 26%, 0% and 1%, respectively, and Leishmania PCR prevalence was 2%. Prevalences were significantly greater in 2017, overdispersed and not spatially related to each other although both were positively associated with SGH but not to rSP03B antibody optical densities, questioning the value of the latter as a diagnostic marker for these infections in humans.

• Klíčová slova
• Leishmania infantum, anti-saliva antibodies, blood donors, sandflies, sandfly fever sicilian virus, toscana virus,
• MeSH
• dárci krve MeSH
• Leishmania infantum * MeSH
• leishmanióza * parazitologie   veterinární   MeSH
• lidé MeSH
• Phlebotomus * parazitologie   MeSH
• protilátky MeSH
• Psychodidae * MeSH
• rekombinantní proteiny MeSH
• virus horečky pappataci * genetika   MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Španělsko epidemiologie   MeSH
• Názvy látek
• protilátky MeSH
• rekombinantní proteiny MeSH

In March 2021, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. The phylum was expanded by four families (Aliusviridae, Crepuscuviridae, Myriaviridae, and Natareviridae), three subfamilies (Alpharhabdovirinae, Betarhabdovirinae, and Gammarhabdovirinae), 42 genera, and 200 species. Thirty-nine species were renamed and/or moved and seven species were abolished. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

• MeSH
• lidé MeSH
• Mononegavirales * MeSH
• viry * MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH

• Publikační typ
• tisková chyba MeSH

In March 2020, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. At the genus rank, 20 new genera were added, two were deleted, one was moved, and three were renamed. At the species rank, 160 species were added, four were deleted, ten were moved and renamed, and 30 species were renamed. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

• MeSH
• Mononegavirales klasifikace   MeSH
• terminologie jako téma MeSH
• Publikační typ
• zprávy MeSH

Serbia was a country endemic for leishmaniasis with rich and abundant sand fly fauna during the middle of the 20th century. After 1968, the disease was considered as eradicated, and as a consequence, all research on vectors and pathogens was neglected. The recent detection of Leishmania infantum in sand flies and confirmed cases of leishmaniasis in humans and dogs indicated the risk of re-emergence in Serbia. Also, for millions of refugees/immigrants, Serbia is a transit route between East-Mediterranean and Middle-East countries, and Central/North Europe, and it is under constant risk of vector and disease introduction. Primary objectives of this research were to determine which sand fly species are present around transit routes, whether they include vectors of the Leishmania spp. moreover, is/are Leishmania spp. present in the vectors. Surveys were conducted at 55 locations, organised in four clusters, which covered main immigrant routes and shelters/camps as well as tourist/trade transit routes. In total, 367 sand fly specimens were collected. Nine species were identified: Phlebotomus papatasi, P. perfiliewi, P. tobbi, P. neglectus, P. sergenti, P. alexandri, P. simici, P. balcanicus and P. mascittii. Detection of P. alexandri represents the first record in Serbia. The diversity of sand fly species increased while the number of collected specimens per night decreased during the period of research neglection. Phlebotomus neglectus, a proven vector of L. infantum, was a predominant species in all surveyed clusters, and in 56,52% of locations, it was the only species present. Although all detected species are regarded either as proven or suspected vectors of Leishmania spp., screening of females for Leishmania presence resulted negative. Our study provides insight into the significant changes of sand fly fauna in Serbia during the end of XX and beginning of XXI century. Diverse sand fly fauna in Serbia suggests that the establishment of new leishmaniasis foci is possible.

• Klíčová slova
• Immigration routes, Leishmania, MALDI-TOF, Phlebotomus, Sand fly, Serbia,
• MeSH
• emigrace a imigrace MeSH
• hmyz - vektory MeSH
• leishmanióza přenos   MeSH
• lidé MeSH
• průzkumy a dotazníky MeSH
• psi MeSH
• Psychodidae * MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• psi MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

Background: Massilia virus (MASV) is a phlebovirus isolated from Phlebotomus perniciosus in various regions of southwestern Europe. It is closely related to human pathogens such as Toscana virus and sandfly fever Naples virus. The natural cycle of phleboviruses is poorly understood. Indeed, experimental studies demonstrate that transovarial and sexual transmission are not efficient enough for the maintenance of the virus in nature and to date there is no convincing evidence that a species of vertebrates is the reservoir of the virus. Here, we studied various transmission routes of MASV taking advantage of experimental colonies representing different species of sand flies. Methodology/Principal findings: In P. perniciosus, four sources of infection were compared: (i) Virus-seeded larval food to the first instar larvae (L1), or (ii) to the fourth instar larvae (L4), (iii) virus-seeded blood meal to adult females, and (iv) virus-seeded sugar meal to adults of both sexes. From 875 adults emerged from infected L1 and L4, only three were positive. In females infected by bloodmeal the infection rate was high before defecation, then it decreased drastically; MASV RNA was detected in only 5 out of 27 post-defecation. Surprisingly, the most efficient route of infection was observed after intake of virus-seeded sugar meal: 72% of females (79/110) and 52% of males (51/99) were found to be MASV RNA-positive. In addition, MASV-infected sandflies regurgitated virus particules into the sugar drop and MASV RNA was detectable in this drop for at least 24 h after regurgitation. MASV RNA was detected in about one third of the P. perniciosus exposed to this sugar drop contaminated by regurgitation. Sugar meal infection was also tested with six other species of sand flies. In males, there were no significant differences in infection rates when compared to P. perniciosus. In females, most species tested showed high infection rate at the beginning but then significant gradual decrease in infection rate during the experiment. Conclusions/Significance: We present the first description of arboviral infection of a dipteran vector using sugar meal. In all seven sand fly species tested, MASV was detected for two weeks post-infection. Our results showed that MASV can be transmitted between P. perniciosus either through co-feeding or via an infected sugar source such as plant sap. These newly described routes of horizontal transmission may play an important role in the circulation of phleboviruses in nature.

• Klíčová slova
• Lutzomyia, Phenuiviridae, Phlebotomus, Phlebovirus, Sergentomyia, Toscana virus, sand fly, virus transmission,
• MeSH
• cukry MeSH
• fomity virologie   MeSH
• hmyz - vektory fyziologie   virologie   MeSH
• horečka pappataci přenos   MeSH
• jídla MeSH
• kontaminace potravin * MeSH
• Phlebovirus růst a vývoj   izolace a purifikace   MeSH
• Psychodidae fyziologie   virologie   MeSH
• stravovací zvyklosti * MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• cukry MeSH

BACKGROUND: Recently, Balkan virus (BALKV, family Phenuiviridae, genus Phlebovirus) was discovered in sand flies collected in Albania and genetically characterised as a member of the Sandfly fever Naples species complex. To gain knowledge concerning the geographical area where exposure to BALKV exists, entomological surveys were conducted in 2014 and 2015, in Croatia, Bosnia and Herzegovina (BH), Kosovo, Republic of Macedonia and Serbia. RESULTS: A total of 2830 sand flies were trapped during 2014 and 2015 campaigns, and organised as 263 pools. BALKV RNA was detected in four pools from Croatia and in one pool from BH. Phylogenetic relationships were examined using sequences in the S and L RNA segments. Study of the diversity between BALKV sequences from Albania, Croatia and BH showed that Albanian sequences were the most divergent (9-11% [NP]) from the others and that Croatian and BH sequences were grouped (0.9-5.4% [NP]; 0.7-5% [L]). The sand fly infection rate of BALKV was 0.26% in BH and 0.27% in Croatia. Identification of the species content of pools using cox1 and cytb partial regions showed that the five BALKV positive pools contained Phlebotomus neglectus DNA; in four pools, P neglectus was the unique species, whereas P. tobbi DNA was also detected in one pool. CONCLUSIONS: We report here (i) the first direct evidence that the Balkan virus initially described in coastal Albania has a much wider dissemination area than originally believed, (ii) two real-time RT-PCR assays that may be useful for further screening of patients presenting with fever of unknown origin that may be caused by Balkan virus infection, (iii) entomological results suggesting that Balkan virus is likely transmitted by Phlebotomus neglectus, and possibly other sand fly species of the subgenus Larroussius. So far, BALKV has been detected only in sand flies. Whether BALKV can cause disease in humans is unknown and remains to be investigated.

• Klíčová slova
• Arbovirus, Bunyaviridae, Emergence, Fever, Meningitis, Phlebotomus, Phlebovirus, Phylogeny, Sand fly, Toscana virus,
• MeSH
• entomologie metody   MeSH
• fylogeneze MeSH
• hmyz - vektory virologie   MeSH
• horečka neznámého původu diagnóza   epidemiologie   virologie   MeSH
• horečka pappataci epidemiologie   přenos   virologie   MeSH
• kvantitativní polymerázová řetězová reakce MeSH
• lidé MeSH
• Psychodidae virologie   MeSH
• RNA virová genetika   MeSH
• virus horečky pappataci genetika   fyziologie   MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Albánie epidemiologie   MeSH
• Balkánský poloostrov epidemiologie   MeSH
• Bosna a Hercegovina epidemiologie   MeSH
• Chorvatsko epidemiologie   MeSH
• Srbsko epidemiologie   MeSH
• Názvy látek
• RNA virová MeSH

Sandfly-borne phleboviruses are endemic in the Mediterranean basin. However, levels of exposure of human and animal populations are inadequately researched. Toscana virus (TOSV) is present in Portugal where it causes human infection and disease; in contrast there are few data for sandfly fever Sicilian virus (SFSV) which has neither been isolated nor detected by molecular tests and for which there are only limited serological data. The sera collected from 1160 dogs and 189 cats in southern Portugal were tested for the presence of neutralizing antibodies against TOSV and SFSV, two viruses recognized as distinct serocomplexes in the Mediterranean region. Our data showed (i) seropositivity to TOSV and SFSV in dogs at a rate of 6.8 and 50.8 %, respectively, and (ii) that 3.7 % of cats were seropositive for TOSV. TOSV findings are in line with previous results obtained with less stringent serological assays. Our results for SFSV in dogs clearly indicate that the virus is circulating widely and that humans may be exposed to infection via the dogs. Although the presence of SFSV was suggested by haemagglutination inhibition in 4/1690 human sera in 1974, this is the first time, as far as we know, that SFSV has been shown to circulate so widely in dogs in Portugal. Future studies should be directed at isolating strains of SFSV in Portugal from dogs, humans and sandflies collected in high prevalence regions. As dogs appear to be good sentinels for SFSV, their role as a possible reservoir in the natural cycle should also be considered.

• MeSH
• horečka pappataci krev   veterinární   virologie   MeSH
• kočky MeSH
• nemoci koček krev   virologie   MeSH
• nemoci psů krev   virologie   MeSH
• neutralizující protilátky krev   MeSH
• Phlebovirus imunologie   izolace a purifikace   MeSH
• protilátky virové krev   MeSH
• psi MeSH
• séroepidemiologické studie MeSH
• virus horečky pappataci imunologie   izolace a purifikace   MeSH
• zvířata MeSH
• Check Tag
• kočky MeSH
• mužské pohlaví MeSH
• psi MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Portugalsko epidemiologie   MeSH
• Názvy látek
• neutralizující protilátky MeSH
• protilátky virové MeSH