probably...
No
the flu...
Computer viruses are currently unable to spread to humans.
The animal that started the plague first was the rat. They had parasites in their skin and spread it to humans
There are more than a dozen viruses that can cause encephalitis, spread by either human-to human contact or by animal bites
Rats, fleas, and mice where mainly the first to get the plague and spread it around.
For example in a tropical forest where the emerging Ebola virus has been known to exist,when these forests are cleared,humans may be exposed to virus_infected animal these viruses can infect humans may spread with deadly consequences
Plants have stronger cells walls. And viruses do spread to plants.
Some computer viruses.
ANY infected animal can spread diseases. Any mammal can carry rabies; most varieties of insect carry various viruses.
Typhus is transmitted in human feces, and is usually spread by contaminated water. It is not spread by animal vectors.
Macro viruses