Results 171 to 180 of about 914,168 (204)

Viral determinants of virulence for Rift Valley fever (RVF) in rats

Microbial Pathogenesis, 1988
Rift Valley fever viral strains or variants (RVFV) were compared with respect to (a) virulence for Wistar-Furth rats; (b) in vitro sensitivity to rat and human interferon; (c) ability to form plaques in primary hepatocyte cultures from genetically resistant or susceptible rat strains, and (d) replicative potential in continuous rat cell lines. Egyptian
C J Peters, G W Anderson
exaly   +3 more sources

Characterisation of the protective immune response to Rift Valley fever virus after natural exposure or vaccination with ChAdOx1 RVF [PDF]

, 2022
Rift Valley fever virus is a single stranded RNA Phlebovirus. Spread by numerous species of mosquito, it is predominantly a disease of livestock including sheep, goats and cattle. Disease is characterised by extremely high mortality in young animals and abortions in pregnant animals, with significant impacts on food security and the wider economy ...
Wright, Daniel
openaire   +2 more sources

Rift Valley fever in Uganda: Seroprevalence and risk factor surveillance vis-à-vis mosquito vectors, anti-RVF virus IgG and RVF virus neutralizing antibodies in goats

Small Ruminant Research, 2013
Abstract Increasing occurrence of outbreaks of Rift Valley fever (RVF) has been reported in Kenya, Somalia, Tanzania, Sudan, Madagascar and South Africa during heavy and prolonged, often unseasonal, rainfall from 1997 to 2009. Given Uganda’s location in the endemic zone of RVF, surveys were conducted on goat farms with a view to establishing presence
J Walubengo
exaly   +2 more sources

Rift Valley Fever vaccine strategies: Enhanced stability of RVF Clone 13

Vaccine, 2023
Rift Valley Fever virus (RVFV) causes the zoonotic RVF disease, which results in substantial economic losses in livestock industries. Regular vaccination of livestock against RVF is necessary to generate long-term immunity and avoid the loss of livestock.
Boitumelo, Moetlhoa, Mabotse, Tjale, Alri, Pretorius, Rose, Hayeshi, Anne, Grobler, Nobalanda B, Mokoena   +5 more
openaire   +2 more sources

Seroepidemiological study of Rift Valley fever (RVF) in animals in Saudi Arabia

Tropical Animal Health and Production, 2012
Serological prevalence of IgG antibodies against Rift Valley fever (RVFV) virus was investigated in 22 major localities in five different regions of Saudi Arabia where vaccination against RVF virus (RVFV) is not practiced. The study excludes the southwestern region where a major outbreak of RVF occurred in 2000 and where annual vaccination of ruminants
Adel I, Al-Afaleq, Mansour F, Hussein, Abdulmohsin A, Al-Naeem, Fadil, Housawi, Anwar G, Kabati   +4 more
openaire   +2 more sources

Shedding of Rift Valley fever virus by infected sheep and by sheep protected by BCG and RVF vaccines

Revue Scientifique et Technique de l'OIE, 1984
Summary : The shedding of RVF virus was traced in 3 groups of sheep, one vaccinated twice with RVF vaccine, a second vaccinated twice with BCG tuberculosis vaccine, and a third unvaccinated group. The three groups were challenged with virulent R VF virus and the rectal tempera­ ture, viraemia and virus shedding were recorded in all animals of the three
M S, Saber, N, Emad, A A, Barakat, A, El-Debegy, M, Fathia, M M, El-Nimr, S, El-Nakashly   +6 more
openaire   +2 more sources

Design and Evaluation of the Primers for Rift Valley Fever (RVF) Virus RT-PCR Detection

Advanced Materials Research, 2014
Rift Valley Fever (RVF) is a notifiable multiple species diseases in the OIE list, and causes human and agricultural losses in endemic regions. To develop the rapid method for detecting of RVF, 2 specific primers for reverse transcriptase polymerase chain reaction (RT-PCR) and 7 overlapping oligo primers were designed according to the nucleotide ...
Ze Xiao Yang, Bo Wang, Qiu Mei Xu, Xue Ping Yao, Ling Zhu, Zhi Wen Xu, Kai Yu Wang, Gui Li Li, Shan Zhen Peng, Yin Wang   +9 more
openaire   +1 more source

Analysis of Surveillance Systems in Place in European Mediterranean Countries for West Nile Virus (WNV) and Rift Valley Fever (RVF)

Transboundary and Emerging Diseases, 2013
West Nile virus (WNV) and Rift Valley fever virus (RVFV) represent an important group of viral agents responsible for vector-borne zoonotic diseases constituting an emerging sanitary threat for the Mediterranean Basin and the neighbouring countries. WNV infection is present in several Mediterranean countries, whereas RVF has never been introduced into ...
F, Cito, V, Narcisi, M L, Danzetta, S, Iannetti, D D, Sabatino, R, Bruno, A, Carvelli, M, Atzeni, F, Sauro, P, Calistri   +9 more
openaire   +2 more sources

Modelling Rift Valley Fever (RVF) Disease Vector Habitats Using Active and Passive Remote Sensing Systems

12th Canadian Symposium on Remote Sensing Geoscience and Remote Sensing Symposium,, 2005
The NASA Ames Ecosystem Science and Technology Branch and the U.S. Army Medical Research Institute of Infectious Diseases are conducting research to detect Rift Valley fever (RVF) vector habitats in eastern Africa using active and passive remote-sensing.
V.G. Ambrosia, K.G. Linthicum, C.L. Bailey, P. Sebesta   +3 more
openaire   +1 more source

Occurrence of rift valley fever (RVF) in Dodoma region, Tanzania and its management implications

2010
Rift Valley Fever (RVF) is a peracute or acute febrile zoonotic mosquito-borne viral disease affecting wildlife, domestic animals and occasionally humans. It occurs after heavy rains and floods and is transmitted to humans through infected mosquito bite or handling of infected animals and/or their products.
Tarimo, T, Mokit, F, Mdegela, R, Kideghesho, J, Mbije, N   +4 more
openaire   +1 more source