11) The test was considered positive when the HA end-point titre was depressed by three or more dilutions in the HI test
Statistical analysis: The data regarding HI test
was processed for calculating geometric mean titer (GMT) on 21, 28 and 35 days post-vaccination (DPV).
Map of Harris County and the City of Houston, Texas, showing the geographical distribution of HI test
results for WNV, SLE, EEE, and WEE in 2015.
The virus Neutralization test (NT) was far more sensitive in comparison to HI test
Antibody titer for NDV was determined from each serum sample using the OIE HI test
7 % of ELISA positive cases had titer [greater than or equal to] 32 for H9N2 influenza in HI test
The HA agent was confirmed as AI (H9 type) by using HI test
with AIV-H9 specific antisera (Muhammad et al.
The virus titers determined by using HI test
were ranged from 1:64 to 1:512.
The HI test
is a widely-used technique for measuring specific antibody against influenza as it presents a relatively simple and inexpensive method which has been extensively used in epidemiological studies of influenza virus infection.
As a companion to the Hydraulic Institute Standards, together with the HI Test
Standards, the Engineering Data Book completes the data for solving problems related to the pumping and transfer of fluids.
The HI test
was conducted using haemagglutination of chicken red blood cells (CRBC).
with ferret anti-serum against A(H1N1)pdm09 (CA09), seasonal H3N2(Vic11,BR10/07 and Perth09), classical swine subtype H1N1(NJ76), and the seasonal influenza subtype H1N1 viruses (BR59/07, SI06) showed that the HB/1250/12 virus is antigenically indistinguishable from NJ76 and CA09, but different from subtype H3N2 viruses (Vic11, BR10/07, and Perth09) and seasonal subtype H1N1 viruses(BR59/07, SI06,) (online Technical Appendix Table; wwwnc.