Answer:
In horizontal transmission, viruses are transmitted among individuals of the same generation.
while In vertical transmission, viruses are passed vertically from mother to offspring via egg, either on the surface of the egg (trans ovum transmission) or within the egg(trans ovarian transmission).
Step-by-step explanation:
Transmission processes determine the spread and the persistence of pathogens in a population. Knowledge of how the virus infection spreads is fundamental to design an appropriate disease control program.
In general, transmission of a virus can occur horizontally or vertically, or both.