Pathological studies on postvaccinal reactions of Rift Valley fever in goats.
RVF live attenuated vaccine (Smithburn strain) was evaluated by using goats as experimental animal. The results indicate that this vaccine cause severe deleterious pathological changes in liver especially in kids and causing abortion in pregnant does. The virus was seen to be propagated inside hepatic cells forming intranuclear inclusions which was also seen by E.M. Viral antigens were detected in hepatic cells, gall bladder, endothelial lining of blood vessels, leukocytes, kidneys and heart by using immunoflourescent technique. It could be concluded that the use of live attenuated vaccine of RVF (Smithburn strain) for immunization of live stock is not safe in Egypt as it considered an endemic area.
Kamal
Samia Ahmed
SA
Animal Health Research Institute, Dokki, Giza, Egypt. selkabany@yahoo.com
D000818:Animals; D001808:Blood Vessels / Q000821:virology; D002467:Cell Nucleus / Q000648:ultrastructure; D004534:Egypt; D005260:Female; D005704:Gallbladder / Q000821:virology; D006041:Goats; D006321:Heart / Q000821:virology; D045586:Intranuclear Inclusion Bodies / Q000821:virology; D007668:Kidney / Q000821:virology; D007962:Leukocytes / Q000821:virology; D008099:Liver / Q000473:pathology / Q000821:virology; D046529:Microscopy, Electron, Transmission; D011247:Pregnancy; D012295:Rift Valley Fever / Q000276:immunology* / Q000517:prevention & control* / Q000821:virology; D012296:Rift Valley fever virus / Q000276:immunology / Q000472:pathogenicity*; D014613:Vaccines, Attenuated / Q000009:adverse effects / Q000276:immunology; D014765:Viral Vaccines / Q000009:adverse effects* / Q000276:immunology
D014613:Vaccines, Attenuated; D014765:Viral Vaccines