کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2464891 1111811 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Serological and molecular evidence of hepatitis E virus in swine in Brazil
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Serological and molecular evidence of hepatitis E virus in swine in Brazil
چکیده انگلیسی

Active hepatitis E virus (HEV) infections in two Brazilian swine herds were investigated. In study 1, 26 piglets born to five anti-HEV positive sows were monitored from birth to post-partum week 22. Serum samples were screened for the detection of anti-HEV antibodies and a nested RT-PCR used to examine the HEV genome. Passive transfer of immunity was confirmed. At week 22, 23/26 (88.4%) of the piglets had seroconverted. Genome amplification was achieved in a feces pool from one holding pen and in one serum sample, both from 13-week-old animals. Histology was suggestive of a potential HEV infection. In the second study, 47 piglets born to six anti-HEV-positive sows were monitored after weaning. Seroconversion was determined in eight animals at 6–8 weeks of age. HEV RNA was detected in two pools from a holding pen for 12–16-week-old animals. Brazilian isolates were classified as genotype 3. This is the first molecular evidence of HEV infection in Brazilian pig herds.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Veterinary Journal - Volume 182, Issue 3, December 2009, Pages 474–480
نویسندگان
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