Trogu Tiziana, Canziani Sabrina, Salvato Sara, Tolini Clara, Grilli Guido, Chiari Mario, Farioli Marco, Alborali Loris, Gaffuri Alessandra, Sala Giovanni, Bianchi Alessandro, Rosignoli Carlo, Prati Paola, Gradassi Matteo, Sozzi Enrica, Lelli Davide, Lavazza Antonio, Moreno Ana
Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna "Bruno Ubertini" (IZSLER), Via Antonio Bianchi 7/9, 25124 Brescia, Italy.
Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Via dell'Università 6, 26900 Lodi, Italy.
Microorganisms. 2021 Sep 15;9(9):1957. doi: 10.3390/microorganisms9091957.
Wild birds play an important role in the circulation and spread of pathogens that are potentially zoonotic or of high economic impact on zootechnical production. They include, for example, West Nile virus (WNV), Usutu virus (USUV), avian influenza virus (AIV), and Newcastle disease virus (NDV), which, despite having mostly an asymptomatic course in wild birds, have a strong impact on public health and zootechnical production. This study investigated the presence of these viruses in several wild bird species from North Italy during the biennium 2019-2020. Wild birds derived from 76 different species belonging to 20 orders. Out of 679 birds, 27 were positive for WNV (lineage 2) with a prevalence of 4%; all birds were negative for USUV; one gull was positive for H13N6 influenza virus, and 12 samples were positive for NDV with a prevalence of 2%. Despite the low prevalence observed, the analyses performed on these species provide further data, allowing a better understanding of the diffusion and evolution of diseases of both economic and zoonotic importance.
野生鸟类在病原体的传播和扩散中发挥着重要作用，这些病原体可能是人畜共患病原体，或者对畜牧生产具有重大经济影响。例如，它们包括西尼罗河病毒（WNV）、乌苏图病毒（USUV）、禽流感病毒（AIV）和新城疫病毒（NDV），尽管这些病毒在野生鸟类中大多呈无症状感染过程，但对公共卫生和畜牧生产有重大影响。本研究调查了2019 - 2020两年期意大利北部几种野生鸟类中这些病毒的存在情况。野生鸟类来自20个目76个不同的物种。在679只鸟中，27只西尼罗河病毒（谱系2）呈阳性，患病率为4%；所有鸟类乌苏图病毒检测均为阴性；一只海鸥H13N6流感病毒呈阳性，12份样本新城疫病毒呈阳性，患病率为2%。尽管观察到的患病率较低，但对这些物种进行的分析提供了更多数据，有助于更好地了解具有经济和人畜共患病重要性的疾病的传播和演变。
