BACKGROUND AND OBJECTIVES Project Horizonte, an open cohort of homosexual and bisexual HIV-1-negative men, is a component of the Minas Gerais AIDS Vaccine Program of the Federal University of Minas Gerais, Belo Horizonte, Brazil. Its objectives included the evaluation of seroincidence of HIV, to ascertain the role of counseling on behavior modification and to assess their willingness to partici...

Background: Hepatitis C (HCV) is a worldwide problem without an effective vaccine with more than 170 million chronically infected people worldwide. DNA vaccines expressing antigenic portions of the virus with adjutants have recently been developed as a novel vaccination technology. Objectives: In the present study, a DNA vaccine expressing HCV core protein was developed with IL12 as a genetic a...

brucella is a facultative intracellular pathogen, and brucellosis is commonest zoonotic disease worldwide. brucella species, isolated from domestic animals, are important pathogen for humans. annually, more than 500,000 new cases of brucellosis are reported, and this figure is an underestimate due to extended under-reporting cases in several endemic countries. brucella has a variety of virulenc...

background and objectives: brucellosis is an important health problem in developing countries and no vaccine is available for the prevention of infection in humans. because of clinically infectious diseases and their economic consequences in human and animals, designing a proper vaccine against brucella is desirable. in this study, we evaluated the immune responses induced by a designed recombi...

background : boophilus annulatus is an obligate blood feeder tick that can cause great losses in animals due to anemia and its ability to injure its host skin directly. the aim of this study was identification of cattle humoral immune response to some tick proteins during experimental infestation. methods : immune sera against tick were collected from experimentally infested cattle with ticks. ...

abstract background: varicella is a highly contagious and dangerous disease especially in immunocompromised patients. children with cancer are at increased risk of severe illness and may fatal cases occur. vaccination from vzv ( varicella zoster vaccine) infection can be safe, immunogenic, and effective in children with leukemia who meet the criteria and are at the risk of serious disease or de...

the injection may have triggered a reaction far more lethal than any future distant threat of a comparatively rare disease”. The Health Editor of The Times, alongside sound advice under the headline “There are always risks, but this vaccine will save lives”, strongly implied that HPV vaccine had caused Natalie’s death. “Most experts agree that vaccinating against the virus that causes cervical ...

Compared to other methods of vaccine production, (e.g. culture flask and bioreactor system), the roller culture method for producing rabies vaccine is simpler, and the equipment easier to install and maintain, and also in the event of contamination of one roller, the entire batch need not be discarded. This system provides a much larger surface area than the culture flask, and also ensures a mu...

In order to determine the efficacy of recombinant hepatitis B vaccine in Iranian infants, we analyzed the efficacy of a recombinant hepatitis B vaccine in 115 infants aged 12-24 months born to HBsAg negative mothers who received three doses of HBV Antibody to hepatitis B surface antigen (anti-HBs) was checked after the third dose of the vaccine, 94.8% of the infants had developed protective...

This report describes the preparation of a safe and immunogenic single vaccine against capripox disease in sheep and goats using two different types of cells (primary lamb kidney and vero, a bovine turbinate cell line). This used the 0240 pox strain isolated from sheep during an outbreak. The prepared vaccine was administered subcutaneously and induced complete protection against an experimenta...