They thought that rodents start the disease, because they can move and spread fleas.
i think its every day
The spread of pollination.
it is not. scientists think it may be a disease
90% of modern birds
I happen to be a materials scientist, and I think that by answering this question I'm contemporaneous, if not modern.
Bacteria were the first cells.
they all have different thingd in them
The disease spread so badly, the sickness killed them.
Because most of us would be dead from famine, disease, or simply be working on a farm somewhere.
The disease is not spread directly from person to person.It is spread by the bite of an infective Aedes Aegypti Mosquito.A Mosquito the bites a person with yellow fever within the first the first five days of illness may transmit the disease to other people it bites later.
some disease's that spread from one living thing to another are lice , flu, and cold there is more just cant think of the rest! (:
Some are venomous, but they are not vectors of disease like flies, rodents, roaches, etc.