Virus shedding in co-infections of low pathogenic avian influenza virus ( H6N2 ) and lentogenic newcastle disease virus (La Sota) in Numida Meleagris

An experiment was conducted to evaluate the effect of a low-pathogenic H6N2 avian influenza A viral strain (LPAIV strain H6N2) on subsequent (after 3 days) vaccination with a lentogenic avian paramyxovirus serotype 1 strain La Sota (APMV-1 strain La Sota) in guinea fowl. The effects were monitored b...

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Main Authors: Iv. Zarkov, Al. Valchev
Format: Article
Language:English
Published: Trakia University 2017-06-01
Series:Trakia Journal of Sciences
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Online Access:http://tru.uni-sz.bg/tsj/Vol15_N2_2017/Iv.Zarkov.pdf
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author Iv. Zarkov
Al. Valchev
author_facet Iv. Zarkov
Al. Valchev
author_sort Iv. Zarkov
collection DOAJ
description An experiment was conducted to evaluate the effect of a low-pathogenic H6N2 avian influenza A viral strain (LPAIV strain H6N2) on subsequent (after 3 days) vaccination with a lentogenic avian paramyxovirus serotype 1 strain La Sota (APMV-1 strain La Sota) in guinea fowl. The effects were monitored by detection of the presence of viruses in cloacal and oropharyngeal samples, as well as by the presence of humoral immune response. The obtained results were compared to birds with monoinfections. Replication and virus shedding of LPAIV strain H6N2 from the cloaca and the oropharynx were established, while APMV-1 La Sota was reisolated only from the oropharynx. The reisolation of LPAIV strain H6N2 was similar in both monoinfection and co-infection. The dynamics of virus replication of APMV-1 strain La Sota was affected in the beginning of the co-infection, later occurrence of the peak which matched the period of decline of LPAIV strain H6N2 reisolates. The LPAIV strain H6N2 and APMV-1 strain La Sota co-infection did not exert any influence on humoral immune response to both viruses.
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spelling doaj-art-fe84dc30cc2d439d844b1ba514aba4ae2025-08-20T02:54:58ZengTrakia UniversityTrakia Journal of Sciences1312-17231313-35512017-06-0115211312010.15547/tjs.2017.02.003Virus shedding in co-infections of low pathogenic avian influenza virus ( H6N2 ) and lentogenic newcastle disease virus (La Sota) in Numida MeleagrisIv. ZarkovAl. ValchevAn experiment was conducted to evaluate the effect of a low-pathogenic H6N2 avian influenza A viral strain (LPAIV strain H6N2) on subsequent (after 3 days) vaccination with a lentogenic avian paramyxovirus serotype 1 strain La Sota (APMV-1 strain La Sota) in guinea fowl. The effects were monitored by detection of the presence of viruses in cloacal and oropharyngeal samples, as well as by the presence of humoral immune response. The obtained results were compared to birds with monoinfections. Replication and virus shedding of LPAIV strain H6N2 from the cloaca and the oropharynx were established, while APMV-1 La Sota was reisolated only from the oropharynx. The reisolation of LPAIV strain H6N2 was similar in both monoinfection and co-infection. The dynamics of virus replication of APMV-1 strain La Sota was affected in the beginning of the co-infection, later occurrence of the peak which matched the period of decline of LPAIV strain H6N2 reisolates. The LPAIV strain H6N2 and APMV-1 strain La Sota co-infection did not exert any influence on humoral immune response to both viruses.http://tru.uni-sz.bg/tsj/Vol15_N2_2017/Iv.Zarkov.pdfNumida meleagrisInfluenza A virusNewcastle disease virusCo-infections
spellingShingle Iv. Zarkov
Al. Valchev
Virus shedding in co-infections of low pathogenic avian influenza virus ( H6N2 ) and lentogenic newcastle disease virus (La Sota) in Numida Meleagris
Trakia Journal of Sciences
Numida meleagris
Influenza A virus
Newcastle disease virus
Co-infections
title Virus shedding in co-infections of low pathogenic avian influenza virus ( H6N2 ) and lentogenic newcastle disease virus (La Sota) in Numida Meleagris
title_full Virus shedding in co-infections of low pathogenic avian influenza virus ( H6N2 ) and lentogenic newcastle disease virus (La Sota) in Numida Meleagris
title_fullStr Virus shedding in co-infections of low pathogenic avian influenza virus ( H6N2 ) and lentogenic newcastle disease virus (La Sota) in Numida Meleagris
title_full_unstemmed Virus shedding in co-infections of low pathogenic avian influenza virus ( H6N2 ) and lentogenic newcastle disease virus (La Sota) in Numida Meleagris
title_short Virus shedding in co-infections of low pathogenic avian influenza virus ( H6N2 ) and lentogenic newcastle disease virus (La Sota) in Numida Meleagris
title_sort virus shedding in co infections of low pathogenic avian influenza virus h6n2 and lentogenic newcastle disease virus la sota in numida meleagris
topic Numida meleagris
Influenza A virus
Newcastle disease virus
Co-infections
url http://tru.uni-sz.bg/tsj/Vol15_N2_2017/Iv.Zarkov.pdf
work_keys_str_mv AT ivzarkov virussheddingincoinfectionsoflowpathogenicavianinfluenzavirush6n2andlentogenicnewcastlediseaseviruslasotainnumidameleagris
AT alvalchev virussheddingincoinfectionsoflowpathogenicavianinfluenzavirush6n2andlentogenicnewcastlediseaseviruslasotainnumidameleagris