نتایج جستجو برای: hemagglutination inhibition tests

تعداد نتایج: 659587  

2015
Joseph Bucukovski Neus Latorre-Margalef David E. Stallknecht Benjamin L. Miller Florian Krammer

Influenza serology has traditionally relied on techniques such as hemagglutination inhibition, microneutralization, and ELISA. These assays are complex, challenging to implement in a format allowing detection of several types of antibody-analyte interactions at once (multiplex), and troublesome to implement in the field. As an alternative, we have developed a hemagglutinin microarray on the Arr...

Journal: :The Tohoku journal of experimental medicine 1961
N ISHIDA H KUDO T SHIRATORI M NAGASE

3) Heat stability of hemagglutinins is higher with Q virus than P virus. 4) Bovine red cell agglutinins are detectable only with Q virus but not with P virus. In this article, the fact that the activity of receptor destroying enzyme is higher with Q virus than when P virus was added as the fifth marker. In the second place, higher avidity of P virus than Q virus to immune sera was studied furth...

Journal: :The Journal of infectious diseases 2008
David Holland Robert Booy Ferdinandus De Looze Peter Eizenberg James McDonald Jeff Karrasch Maureen McKeirnan Hatem Salem Graham Mills Jim Reid Françoise Weber Melanie Saville

BACKGROUND Enhanced influenza vaccines are needed to provide improved protection for elderly individuals. The intradermal vaccination route was hypothesized to provide immunogenicity superior to that provided by the intramuscular vaccination route. METHODS In a multicenter, randomized study, 1107 volunteers >60 years of age received intradermal trivalent inactivated influenza vaccine containi...

Journal: :The Journal of veterinary medical science 2008
Y J Lin M C Deng S H Wu Y L Chen H C Cheng C Y Chang M S Lee M S Chien C C Huang

Since outbreaks of highly pathogenic avian influenza (HPAI) in both human and poultry from 2003, it is critical to have effective vaccines. A cDNA fragment coding the entire hemagglutinin (HA) gene derived from an H5N1 strain (A/duck/China/E319-2/03) was cloned and expressed using the baculovirus system. Two weeks after receiving two doses of recombinant HA (rHA) vaccines, chickens develop high...

Journal: :Revista do Instituto de Medicina Tropical de Sao Paulo 2001
T M de Paiva M A Ishida K A Hanashiro R M Scolaro M G Gonçalves M A Benega M A Oliveira A S Cruz S Takimoto

From June to July 1999 an outbreak of acute respiratory illness occurred in the town of Iporanga. Out of a total of 4,837 inhabitants, 324 cases were notified to the Regional Surveillance Service. Influenza virus was isolated from 57.1% of the collected samples and 100% seroconversion to influenza A (H1N1) was obtained in 20 paired sera tested. The isolates were related to the A/Bayern/07/95 st...

Journal: :Journal of clinical microbiology 2002
Masae Itoh Yoshinobu Okuno Hak Hotta

The anti-measles virus (MV) antibody titers in the sera of vaccinees and naturally infected individuals of different age groups were measured to help assess the efficacy of the current MV vaccination in Japan. Neutralizing (NT) antibody titers induced by vaccination were 2(3.2) times lower than those induced by natural infection and declined significantly by age 20. The once-decreased NT antibo...

Journal: :Journal of clinical microbiology 1983
P W Neumann J M Weber

The single radial hemolysis (SRH) test was compared with the hemagglutination inhibition (HI) test for establishing rubella immune status and diagnosing recent infection. Correlation between mean SRH diameters and HI titers greater than or equal to 1:8 was high (R = 0.99). It is suggested that a level of greater than or equal to 5 IU represents low-level antibody and that greater than or equal ...

2016
Pei Zhou San Huang Weijie Zeng Xin Zhang Lifang Wang Xinliang Fu Shoujun Li

The H3N8 virus and the H3N2 virus are the main subtypes of canine influenza virus (CIV). H3N8 CIV mainly circulates in America, and H3N2 CIV mainly circulates in Asia. However, there was an outbreak of the Asian H3N2 virus in the United States (US) in 2015. Thus, it is important to evaluate the presence of subtype H3N8 virus in dogs in China. From May 2015 to November 2015, 600 sera from pet do...

Journal: :Journal of immunological methods 1979
H C Ertl W Gerlich U H Koszinowski

An enzyme-linked immunosorbent assay (ELISA) for the detection of antibodies to Sendai virus, a paramyxovirus, is described. The assay was found to be about 20-fold more sensitive than the hemagglutination inhibition assay. Differentiation between virus specific IgG and IgM is possible. The test appears to be especially useful in the study of early events in antibody formation in vivo as well a...

Journal: :The American journal of tropical medicine and hygiene 2003
Veerachai Watanaveeradej Timothy P Endy Rudiwilai Samakoses Angkool Kerdpanich Sriluck Simasathien Napuschon Polprasert Chanchai Aree David W Vaughn Cynthia Ho Ananda Nisalak

Antibodies of all four dengue virus serotypes were detected by hemagglutination inhibition (HI) in 97% of 2,000 infants' cord sera at the time of delivery. In comparison with 250 mother-infant's paired sera, we found that 53% of the infants' serum HI titers were higher than those of the mother's. The mother/infant IgG subclasses 1, 2, 3, and 4 titers were 53.1/87.0, 8.4/11.7, 0.14/0.11, and 1.1...

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