Epidemiological studies on rift valley fever [electronic resource].

Includes references.

An epidemiological investigation was carried out to study seroservalence of Rift valley fever virus (RVFv) antibodies among cattle, buffalo, sheep and goat herds by Serum Neutralization Test (SNT) and by Capture Enzyme linked immunosorbant assay IgG (IgG ELISA).Blood samples were collected from animals vaccinated with inactivated RVF vaccine at Dakhlia and Sharkia governorates. The serum samples were prepared from collected blood samples during a period from 17/2/2006 to 03/10/2006. The percent of positivity at Dakhlia governorate was 77.9%by SNT and 79.7 %by ELISA. The percent of positivity at Sharkia governorate was 62.8%by SNT and 64 %by ELISA. The total protection percent was good in Dakhlia governorate that indicates the big effort done by General Organization of veterinary services. This may be due to the fact that many farmers or animals owners at Sharkia governorate are not responding to vaccination campaigns, so Levels of the protective antibody titer of "immunized animals" was not good, thus making them highly vulnerable to RVF and resulting in the possibility of rapid dissemination of infection, particularly in densely populated areas which may begin in it epidemic wave. In Egypt vaccine is obligatory, in which control of RVF relies predominantly on vaccination and disinfection. So Virucidal efficacy was evaluated for available disinfectants on RVF Virus in vivo. VirkonS (1% potassium peroxymonosulfate), and Sodium hypochlorite (3%) and 4.5% acetic acid and Phenol 0.5% .These disinfectants can aid in controlling transmission of viruses.

Summary in Arabic.

1