1. Veterinary Epidemiology; Economics and Public Health Group (VEEPH); Royal Veterinary College; London UK
2. Department of Hygiene and Preventive Medicine (Hygiene); Faculty of Veterinary Medicine; Kafrelsheikh University; Kafrelsheikh Egypt
3. Department of Economics; School of Arts and Social Sciences; City University London; London UK
4. Department of Animal Medicine; Faculty of Veterinary Medicine; Kafrelsheikh University; Kafrelsheikh Egypt
5. Department of Hygiene and Preventive Medicine (Zoonoses); Faculty of Veterinary Medicine; Kafrelsheikh University; Kafrelsheikh Egypt