Epidemiological factors related to the introduction, spread and maintenance of Rift Valley
fever (RVF) virus were studied during the 1977–1978 epizootic in Egypt. Culex pipiens is the …

Attempts were made to isolate virus from wild caught mosquitoes during the 1977 and 1978
Rift Valley fever (RVF) epizootics in Egypt. Over 95% of the 55,126 mosquitoes collected …

Methods We collected tick samples for identification from different region of Saudi Arabia
during March 1992-December 1992. Ticks collected from domestic animals were washed with …

Determination of the incidence of infection with adults of the Pentastomid Linguatula serrata
Froel. in stray dogs is of importance as man may be an intermediate or incidental host. In …

The authors, with SALMAN [this Bulletin, 1966, v. 63, 301], have earlier produced circumstantial
evidence strongly suggesting that halzoun is caused by ingestión of the nymphs of …

Lymph nodes from 46 sheep, 39 cows, 35 buffalo, 40 camels, and 93 pigs were examined.
Nodes from 2 buffalo and 4 camels were infected; those from other animals were uninfected.

Feeding and engorged nymphs and unfed and feeding adults of Hyalomma (H.) dromedarii
were treated topically with 10, 20, and 50 μg juvenile hormone I (JH I). Large doses of JH I …

Prefeeding exposure of female Argas (Persicargas) arboreus to short photoperiod (SP) induces
diapause, expressed as oviposition delay for more than 40 days postfeeding. Diapause …

Bioassays performed on Hyalomma dromedarii Koch attached to rabbits demonstrated the
presence of a female sex pheromone which was emitted within 2 days after females inserted …

Fed adult Argas (Persicargas) arboreus produce a fecundity-reducing pheromone which
affects all or most females in crowded conditions. Unfed adults and unfed and fed nymphs do …