Factors affecting the bluetongue virus neutralizing antibody response and the reaction between virus and antibody.

Titration of Rinderpest Virus and Its Neutralizing Antibody

Recombinant virus vaccine for bluetongue disease in sheep.

Bluetongue virus proteins derived from baculovirus expression vectors have been administered in different combinations to sheep, a vertebrate host susceptible to bluetongue virus, and the neutralizing antibody responses were measured. Vaccinated sheep were subsequently challenged, and the indices of clinical reaction were calculated. The results indicated that the outer capsid protein VP2 alone...

Assessment of protection against SARS-CoV-2 infection by measuring antibody titer, yes or no!

Dear Editor The current epidemic of the novel Coronavirus disease 2019 (COVID-19) risen from Wuhan, China, turned into a worldwide concern because of its incubation period (2-14 days) and its high transmission rate. The first cases of the infection were reported in December 2019 in Wuhan with symptoms like pneumonia for an unknown reason. Very soon it was known as a novel kind of Coronavirus o...

Serological survey of sheep in Iran for Type specific Antibody to Bluetongue virus

Crude extract of bacterially expressed, infectious bursal disease virus VPX/VP2 proteins induces protective immune response to the virus in chickens

Infectious bursal disease virus (IBDV) infects young chickens and causes serious lose to the poultry industry, worldwide. Previous attempts using purified bacterially expressed IBDV VP2 failed to elicit a protective immune response to the virus. This study was designed to investigate if the initial expressed protein contained neutralizing epitopes but became nonfunctional during purification st...