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Mohammed Nma Mohammed,Abd Rahaman Yasmin,Mohd Adzahan Noraniza,Siti Zubaidah Ramanoon,Siti Suri Arshad,Faruku Bande,Hussni O. Mohammed 대한수의학회 2021 Journal of Veterinary Science Vol.22 No.3
West Nile virus (WNV), a neurotropic arbovirus, has been detected in mosquitos, birds, wildlife, horses, and humans in Malaysia, but limited information is available on WNV infection in Malaysian pigs. We tested 80 archived swine serum samples for the presence of WNV antibody and West Nile (WN) viral RNA using ID Screen West Nile Competition Multi-species enzyme-linked immunosorbent assay kits and WNV-specific primers in reverse transcription polymerase chain reaction assays, respectively. A WNV seroprevalence of 62.5% (50/80) at 95% confidence interval (51.6%–72.3%) was recorded, with a significantly higher seroprevalence among young pigs (weaner and grower) and pigs from south Malaysia. One sample was positive for Japanese encephalitis virus antibodies; WN viral RNA was not detected in any of the serum samples.
Equine hyperimmune serum protects mice against Clostridium difficile spore challenge
Weiwei Yan,Kang-Soon Shin,Shih-Jon Wang,Hua Xiang,Thomas Divers,Sean McDonough,James Bowman,Anne Rowlands,Bruce Akey,Hussni Mohamed,Yung-Fu Chang 대한수의학회 2014 Journal of Veterinary Science Vol.15 No.2
Clostridium (C.) difficile is a common cause of nosocomialdiarrhea in horses. Vancomycin and metronidazole havebeen used as standard treatments but are only moderatelyeffective, which highlights the need for a novel alternativetherapy. In the current study, we prepared antiserum ofequine origin against both C. difficile toxins A and B as wellas whole-cell bacteria. The toxin-neutralizing activities of theantibodies were evaluated in vitro and the prophylacticeffects of in vivo passive immunotherapy were demonstratedusing a conventional mouse model. The data demonstratedthat immunized horses generated antibodies against bothtoxins A and B that possessed toxin-neutralizing activity. Additionally, mice treated with the antiserum lost less weightwithout any sign of illness and regained weight back to anormal range more rapidly compared to the control groupwhen challenged orally with 107 C. difficile spores 1 day afterserum injection. These results indicate that intravenousdelivery of hyperimmune serum can protect animals from C. difficile challenge in a dose-dependent manner. Hence,immunotherapy may be a promising prophylactic strategyfor preventing C. difficile infection in horses.