Temat: wirus Zachodniego Nilu - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Badania nad wystepowaniem wirusa goraczki Zachodniego Nilu u komarow [Diptera: Culicidae] na wybranych terenach Polski
A study on the occurrence of West Nile virus in mosquitoes [Diptera: Culicidae] on the selected areas in Poland
Autorzy:: Kubica-Biernat, B
Kruminis-Lozowska, W.
Stanczak, J.
Cieniuch, S.
Powiązania:: https://bibliotekanauki.pl/articles/839294.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: wirus Zachodniego Nilu
badania terenowe
wystepowanie
choroby wirusowe
goraczka Zachodniego Nilu
Diptera
Polska
Culicidae
komary
Źródło:: Annals of Parasitology; 2009, 55, 3; 259-263
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Badania nad występowaniem wirusa gorączki Zachodniego Nilu u komarów [Diptera: Culicidae] na wybranych terenach Polski
A study on the occurrence of West Nile virus in mosquitoes [Diptera: Culicidae] on the selected areas in Poland
Autorzy:: Kubica-Biernat, B.
Kruminis-Łozowska, W.
Stańczak, J.
Cieniuch, S.
Powiązania:: https://bibliotekanauki.pl/articles/2143584.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: wirus Zachodniego Nilu
badania terenowe
wystepowanie
choroby wirusowe
goraczka Zachodniego Nilu
Diptera
Polska
Culicidae
komary
Opis:: West Nile virus (WNV), the etiologic agent of West Nile Fever (WNF), an emerging infectious disease that lately has been rapidly extending its range of occurrence from Africa to Middle East, and to Asia and Southern Europe. In Europe, cases of isolating WNV from mosquitoes representing four genera have been reported from Romania, Portugal, France, southern Russia and what is the most important, from Poland’s neighbouring countries as the Czech Republic, Slovakia and southern Ukraine. These data, as well as human and equine cases in the Czech Republic and Belarus, support hypothesis that WNV has already been present also in Poland, the more so, specific antibodies were detected in the sera of birds collected at the Kampinos and Bialowieza Primeval Forests and in human from the vicinity of Bialystok. Mosquitoes were collected in 2004–2009 at indoor and outdoor collection sites in districts: Kujawsko-Pomorskie, Mazowieckie, Podlaskie and Warmińsko-Mazurskie. In total 15400 female mosquitoes were collected in the cow sheds and overwintering in the cellars, and from human bait and CO2 traps. Mosquitoes were sorted by the collecting site, species and sex, and placed in pools of not in more than 50 specimens in special mixture of phenol and chaotropic salts and frozen in –20°C. Altogether, 15400 females were examined. Total RNA were extracted according to protocol of A&A Biotechnology. RT reaction was performed with random primers and 217-nucleotide fragment from the NS5 coding sequence was amplified by heminested PCR. PCR products were analysed on 1.5% agarose gel. The predominant species was Culex pipiens, accounting for over 42% of total insects collection. All obtained results were negative. Further investigations are needed.
Źródło:: Wiadomości Parazytologiczne; 2009, 55, 3; 259-263
0043-5163
Pojawia się w:: Wiadomości Parazytologiczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Zmienność wirusów - przyczyny i skutki
Genetic viral variability - causes and effects
Autorzy:: Gliński, Zdzisław
Żmuda, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/22181107.pdf
Data publikacji:: 2022
Wydawca:: Krajowa Izba Lekarsko-Weterynaryjna
Tematy:: wirusologia
wirusy
wirusy RNA
wirus grypy
wirus dengi
wirus zika
wirus Zachodniego Nilu
koronawirusy
przyczyny
mutacje
rekombinacja
skutki
wirus wścieklizny
zmienność genetyczna
RNA viruses
genetic variability
mutation
recombination
Opis:: Viruses are endowed with a great ability to adapt to different environments. It means altering their cellular tropism and crossing host animal species barriers. The basis of their evolutionary success lies in subtle genetic changes through mutations and major genetic changes through recombination and nucleotide substitution. Genetic recombination is one of the primary processes that produce the genetic diversity upon which natural selection acts. RNA viruses have a great potential for genetic variation, rapid evolution and adaptation. Since influenza viruses have segmented genome, the reassortment is among important mechanisms for generation of new hybrid strains and/or subtypes. The modifications of viral RNA genome are frequently dependent on RNA polymerases erroneous action during replication, on the evolutionary pressure, on the novel environment of the host, the immune pressure, or antiviral drugs pressure. Shift to the new host species and virus transmission by insect vectors induced changes due to positive selection of variants with higher fitness for host-virus or vector-virus interactions. This article covers basic aspects of genetic diversity mechanisms of mutation and recombination of selected RNA viruses. The Influenza virus, Denga, Zika, West Nile, Rabies and SARS‑CoV-2 are just among several examples of virus genetic variations, that influence rapid evolution of viral diseases, and make design of reliable vaccine quite difficult.
Źródło:: Życie Weterynaryjne; 2022, 97, 02; 75-80
0137-6810
Pojawia się w:: Życie Weterynaryjne
Dostawca treści:: Biblioteka Nauki

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