Mode of transmission | Examples |
---|---|
Vegetative reproduction (vertical) | |
Via oocytes (vertical) | Drosophila/Wolbachia [98], aphid/Buchnera [97], sponge [204], herbs/fungi [205] |
Coprophagy (vertical and horizontal) | Many animals: termites [101], rabbits [206], koala [100], insects [102] |
Mother’s milk (vertical) | |
Physical contact starting at birth (Vertical and horizontal) | |
Horizontal |