Microorganisms and disease

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TB is caused by a .
Bacteria are very small organisms.
They are sometimes called .
Microbes which cause disease are called .
This means causing.
Not all microorganisms are
There are ways these pathogens are transmitted.
They are and indirect .
Direct contact means that the microbes are passed by contact.
There are two methods of direct contact.
They are and vertical transmission.
Horizontal transmission means that the microbes are passed on by , sneezing, kissing and intercourse.
transmission is when the microbes pass through the from mother to unborn baby.
Indirect contact means that other are not involved.
There are two main ways indirect contact can spread .
They are vehicle-borne and
Borne means carried by
Vehicle- borne means the microbes are carried in a physical way.
Some microbes are carried by the
Some diseases can be transmitted in .
can carry some microorganisms.
Objects like and splinters which can penetrate the skin can carry disease.
Vector-borne means that the microorganisms are carried by another .
This is often an .
This might be microorganisms transferred to your food on the of flies.
Microorganisms can be into your blood by mosquitoes when they bite you.