An Overview on Marek’s Disease Virus Evolution and Evidence for Increased Virulence in Brazil

Autor:	ACD Torres, SY Marin, CS Costa, NRS Martins
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Gallid herpesvirus 2 Marek’s disease virus Gallus gallus domesticus meq gene virulence Animal culture SF1-1100 Veterinary medicine SF600-1100 Zoology QL1-991
Zdroj:	Brazilian Journal of Poultry Science, Vol 21, Iss 1 (2019)
Druh dokumentu:	article
ISSN:	1806-9061 71190864
DOI:	10.1590/1806-9061-2018-0870
Popis:	ABSTRACT Marek’s disease virus (MDV) has been shown to be evolving to higher virulence. One of the genetic sites involved in virulence which enables such characterization is the 339-amino acid Meq protein encoding gene (meq). The reemergence of clinical Marek’s disease (MD) in vaccinated flocks can be associated to changes in meq. Our studies have shown the presence of very virulent MDV strains in the Brazilian industrial and free-range poultry. We present an overview of MD increasing severity and indicate the necessity of using phylogenetic tools for best accompanying MDV evolution.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/7119086463684715ace10a8db7b7d441 Zobrazit plný text záznamu View record in DOAJ