EPIDEMIOLOGICAL AND MORPHOLOGICAL STUDIES ON HYALOMMA SPECIES INFESTING DROMEDARY CAMELS IN ASWAN GOVERNORATE, EGYPT

Document Type : Original Article

Authors

1 Department of Animal and Poultry Hygiene, Faculty of Veterinary Medicine, Aswan University, Aswan 24101

2 Department of Animal and Poultry Hygiene, and Environmental Sanitation, Faculty of Veterinary Medicine, Assiut University, Assiut 71515

3 Department of Food Hygiene, Faculty of Veterinary Medicine, Aswan University, Aswan 24101

4 Department of Parasitology, Faculty of Medicine, Assiut University, Assiut 71515

5 Department of Parasitology, Faculty of Veterinary Medicine, Aswan University, Aswan 24101

Abstract

The study evaluated the hard ticks’ prevalence parasitizing dromedary camels (Camelus
dromedaries) in Aswan Governorate from July 2020 to August 2021. Of 1190 camels examined
1060 (89%) were infested. Factors were camel age, sex, infested site, and seasonal variations
association with the tick distribution, as camels > 10 years were at higher risk rate of 97%
(390/410).
The infestation rate was 90% (990/1100) in males and 77.8% (70/90) in females. Exposure to
infestation was higher in summer 93.7% (458/489) than other seasons. The face, udder, testes,
hind limbs, and tail were the most infested site 97.5% (1160/1190) for each, followed by forelimbs
was 96.6% (1150/1190), chest was 94% (1120/1190), and abdomen was 92.4%
(1100/1190). Statistical analysis of the possible associated risk factors, camel’s age, gender,
sampling season, and infested parts within animal body were all found to be significantly affected
and related to hard tick distribution (P<0.05). Also, the identification and morphological
characterization of the isolated hard ticks were performed using stereomicroscope.

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