Table 2.

Main transmission routes of diseases

Transmission route	Contagious diseases				Non contagious diseases
Direct contact	yes	yes	no	no	no	no
Indirect contact	yes	yes	yes	yes	no	no
Vector-borne	yes	no	yes	no	yes	no
Example in pet birds	Chlamydophilosis	Tuberculosis	West Nile Fever	Cryptosporidiosis	Lyme disease	Genetic disorders