Fibropapillomatosis in green turtles Chelonia mydas in Brazil: characteristics of tumors and virus.
Dis Aquat Organ
; 111(3): 207-17, 2014 Oct 16.
Article
en En
| MEDLINE
| ID: mdl-25320033
Fibropapillomatosis (FP) is a benign neoplasia that affects physiological functions of sea turtles and may lead to death. High prevalence of FP in sea turtle populations has prompted several research groups to study the disease and the associated herpesvirus, chelonid herpesvirus 5 (ChHV5). The present study detected and quantified ChHV5 in 153 fibropapilloma samples collected from green turtles Chelonia mydas on the Brazilian coast between 2009 and 2010 to characterize the relationship between viral load and tumor characteristics. Of the tumor samples collected, 73 and 87% were positive for ChHV5 in conventional PCR and real-time PCR, respectively, and viral loads ranged between 1 and 118.62 copies cell⻹. Thirty-three percent of turtles were mildly, 28% were moderately and 39% were severely affected with FP. Skin samples were used as negative control. High viral loads correlated positively with increasing FP severity in turtles sampled on the Brazilian coast and with samples from turtles found dead in the states of São Paulo and Bahia. Six viral variants were detected in tumor samples, 4 of which were similar to the Atlantic phylogenetic group. Two variants were similar to the western Atlantic/eastern Caribbean phylogenetic group. Co-infection in turtles with more than one variant was observed in the states of São Paulo and Bahia.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Papiloma
/
Neoplasias Cutáneas
/
Infecciones Tumorales por Virus
/
Tortugas
/
Infecciones por Herpesviridae
/
Herpesviridae
Tipo de estudio:
Risk_factors_studies
Límite:
Animals
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Dis Aquat Organ
Asunto de la revista:
BIOLOGIA
/
MEDICINA VETERINARIA
/
MICROBIOLOGIA
Año:
2014
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Alemania