الفهرس 
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Abstract
Rift valley fever (RFV) is an arthropod-borne zoonotic disease affects many animals species and human beings. The purpose of this work was to report the distribution and the current status of RVF in Lower Egypt as well as the possible risk factors involved in its epidemiology. So, 300 blood samples were collected from patients at three governorates; Alexandria (n = 80), Behera (n = 155) and Kafr El-Sheikh (n = 65) from fever and ophthalmic hospitals. Age, sex, locality, area of sampling, occupation and type o milk consumed as well as the clinical picture were recorded for each patient. The incidence of seropositive patients (1gM or IgG positive) as measured by ELISA was determined and classified according to the previous risk factors. The obtained results revealed the following:
• Twenty nine out of 300 samples examined (9.66%) were seropositive RVF.
• The incidence of RVF antibodies in relation to sex was 10.83 and 7.2 1% for males and females, respectively.
• The incidence of seropositive patients according to their age
was 0% (age 10 years), 16.66% (10-20 years), 7.14% (20-
<30 years), 11.86% (30-<40 years) 11.32% (40-<50 years),
6.77% (50-<60 years) and 10.71% for those ageing 60 years.
• According to the locality, the incidence of seropositive patients was 7.50 % for those resident in Alexandria, 10.96% in Behera and 9.23% in Kafr El-Sheikh.