نتایج جستجو برای: hemagglutination inhibition test hi

تعداد نتایج: 1136268  

ژورنال: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
طلعت مختاری آزاد t mokhtari azad حکیمه محمدی h mohammadi محمود محمودی m mahmoodi زهرا سعادتمند z saadatmand اشرف السادات موسوی a moosavi رسول همکار r hamkar رخشنده ناطق

یررسی سرولوژیک ویروس آنفلوانزای c در ایران در سال 1376، نخستین بررسی ویروس آنفلوانزای c در ایران است. این تحقیق در مرکز ملی آنفلوانزا-بخش ویروس شناسی دانشکده بهداشت انجام گرفت. با انجام تست سرولوژی (hemagglutination inhibition (hi بر روی 689 نمونه سرم از تهران و 391 نمونه از سایر استانها و محاسبه افراد دارای تیتر ایمنی بخش نسبت به این ویروس (دارای تیتر <40)، مشخص شد که درصد افراد دارای تیتر ایم...

Journal: :veterinary research forum 2014
majid bouzari

experimental infection of muscovy ducks with v4 strain of newcastle disease virus was undertaken to determine the response of the ducks to the virus and the possibility of virus transmission to ducks and chickens in village like conditions. twelve ducks were randomly and equally divided into three groups of control, inoculated and in-contact. additionally, the chickens were placed into two grou...

2010
Vincenzo Baldo Tatjana Baldovin Michele Pellegrini Gabriele Angiolelli Silvia Majori Annarosa Floreani Marta Cecilia Busana Chiara Bertoncello Renzo Trivello

We studied whether MF59-adjuvanted influenza vaccine improves immunity against drifted influenza strains in institutionalised elderly with underling chronic health conditions. Sera from a randomized study, comparing MF59-adjuvanted (Sub/MF59, n = 72), virosomal (SVV, n = 39), and split (n = 88) vaccines, were retested using a hemagglutination inhibition (HI) assay against homologous (Northern H...

2015
Eun-Ju KIM Bo-Hye KIM Sunjoo YANG Eun-Jin CHOI Ye-Jin SHIN Jae-Young SONG Yeun-Kyung SHIN

In this study, antibody responses after equine influenza vaccination were investigated among 1,098 horses in Korea using the hemagglutination inhibition (HI) assay. The equine influenza viruses, A/equine/South Africa/4/03 (H3N8) and A/equine/Wildeshausen/1/08 (H3N8), were used as antigens in the HI assay. The mean seropositive rates were 91.7% (geometric mean antibody levels (GMT), 56.8) and 93...

Journal: :Applied microbiology 1972
J C Hierholzer W C Gamble K D Quist W A Chappell

Horses were immunized by a variety of inoculation procedures designed to determine the most efficient method of producing antisera to adenovirus types 25 to 31. The procedures evaluated included immunization by (i) direct intravenous (iv) injection, (ii) iv infusion, (iii) intramuscular (im) injection of virus with and without Freund's incomplete adjuvant, (iv) combined iv and im injections, an...

Journal: :Journal of virology 1969
E Norrby

Antisera against isolated capsid components of intermediate adenovirus strains, types 3-16 (the San Carlos agent) and 15-9 and of "parental" prototype strains were compared in neutralization tests, hemagglutination-inhibition (HI) tests employing soluble and virion-associated hemagglutinin as antigens, and by electron microscopy. Hexons of the intermediate strains were found to be similar to, b...

2011
Chao Qiu Di Tian Yanmin Wan Wanju Zhang Chenli Qiu Zhaoqin Zhu Ruiqi Ye Zhigang Song Mingzhe Zhou Songhua Yuan Bisheng Shi Min Wu Yi Liu Shimin Gu Jun Wei Zhitong Zhou Xiaoyan Zhang Zhiyong Zhang Yunwen Hu Zhenghong Yuan Jianqing Xu

Few studies on the humoral immune responses in human during natural influenza infection have been reported. Here, we used serum samples from pandemic 2009 H1N1 influenza infected patients to characterize the humoral immune responses to influenza during natural infection in humans. We observed for the first time that the pandemic 2009 H1N1 influenza induced influenza A-specific IgM within days a...

2014
Trevor Bedford Marc A Suchard Philippe Lemey Gytis Dudas Victoria Gregory Alan J Hay John W McCauley Colin A Russell Derek J Smith Andrew Rambaut

Influenza viruses undergo continual antigenic evolution allowing mutant viruses to evade host immunity acquired to previous virus strains. Antigenic phenotype is often assessed through pairwise measurement of cross-reactivity between influenza strains using the hemagglutination inhibition (HI) assay. Here, we extend previous approaches to antigenic cartography, and simultaneously characterize a...

2002
Christopher W. Olsen Lynnette Brammer Bernard C. Easterday Nancy Arden Ermias Belay Inger Baker Nancy J. Cox

We evaluated seropositivity to swine and human H1 influenza viruses in 74 swine farm owners, employees, their family members, and veterinarians in rural south-central Wisconsin, compared with 114 urban Milwaukee, Wisconsin, residents. The number of swine farm participants with positive serum hemagglutination-inhibition (HI) antibody titers > or = 40 to swine influenza viruses (17/74) was signif...

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