Dust

Nasal mucous

Blood

Droplets or aerosols

the mode of transmission

The reservoir

The portal of exit

The portal of entry

A group of viruses that live in trees

A group of viruses that are endemic in Australia

A group of viruses transmitted by arthropod vectors

A group of viruses that live in marine organisms

All of the above

can infect humans who have close contact with diseased birds

Is an example of a zoonotic virus

Can cause disease in both domestic and wild birds

Pass from animals to humans

Pass from one animal to another

Pass from wild fowl to chickens

Pass from mosquitoes to humans

Can be easily identified as they are always showing symptoms of disease

the term does not encompass the normal microbiota of humans - these microorganisms are harmless and do not cause disease

Are always the source of infection

May include individuals who are infected but do not show any apparent signs of illness

Sometimes the reservoir is the source, and sometimes it is not

Humans are always both the reservoir and the source

The are very different; the reservoir of infection is never the source

They mean the same thing; the reservoir is the source

the same as the reservoir

Is always a sick person shedding infectious agents

The individual or object from which the infectious agent is actually acquired

the habitat in which the infectious agent normally lives, grows, and multiplies

Where the infectious agent is acquired from

The habitat in which the infectious agent normally lives, grows, and multiplies

A Melbourne suburb

A storage place for microorganisms

Multicellular, eukaryotic animals.  They generally possess digestive, circulatory, nervous, excretory, and reproductive systems.

Single-celled prokaryotic organisms that do not contain a nucleus and lack membrane-enclosed intracellular structures

Eukaryotic, single-celled microscopic organisms.  They possess at least one nucleus and numerous intracellular structures.

Eukaryotic organisms that possess a nucleus and intracellular structures.  They are important for the decomposition of organic matter.

Acellular entities that are composed of a nucleic acid and a few proteins.  They are very small and can't be seen with a light microscope.