Infection Triangle correct answers 1. Pathogens
2. Host
3. Vector
Pathogen correct answers disease-causing organism
Host correct answers person or population that contacts one or more agents in an environment
Vector correct answers a biological or physical vehicle that carries the agent...
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Infection Triangle correct answers 1. Pathogens
2. Host
3. Vector
Pathogen correct answers disease-causing organism
Host correct answers person or population that contacts one or more agents in an environment
Vector correct answers a biological or physical vehicle that carries the agent to the host
Viruses correct answers -tiny pathogens
-smaller than bacteria or fungi
-nucleic acid with a protein coat
-cannot reproduce on it's own
-uses a living cell to reproduce
-before infected cell dies, it releases new viruses into other cells
-don't always kill the cells they infect
Outer shell of a virus correct answers envelope
Most Common Viruses correct answers -filoviruses
-hepatitis viruses
-herpes viruses
-influenza viruses
-noroviruses
-papillomaviruses
-retroviruses
-rhinoviruses/adenoviruses
-slow viruses
Herpes virus correct answers virus that take up permanent residence and can flare up
Influenza virus correct answers cause the flu
Norovirus correct answers cause gastroenteritis
Papillomavirus correct answers virus that may be responsible for cervical cancer
Retrovirus correct answers backward sequence of genetic replication (ex HIV)
, Rhinovirus/adenovirus correct answers viruses that cause upper respiratory tract infections
Slow viruses correct answers can produce fatal illnesses
Antibiotics correct answers drugs that inhibit or hill bacteria
Antiviral drugs correct answers drugs that don't completely eradicate a viral infection, but can
decrease it's severity
Bacteria correct answers -contain ribosomes (so they can reproduce)
-some have flagella so they can move
-most plentiful microorganisms
-most pathogenic
-cause harm by:
-releaseing enzymes that digest body cells or
-toxins
Fungi correct answers -eukaryotic organisms
-can be single-celled or long chains
-spreads by reproductive spores or growing threadlike fibres
-absorb nutrients from organic material
-can be helpful (antibiotics)
Treatment for fungi correct answers antifungal medicine
Protozoa correct answers -release enzymes and toxins that destroy cells or interfere with their
function
-not a major health problem in Canada
Treatment for Protozoa correct answers -general medical care to relieve symptoms
-replacement of lost blood or fluids
-drugs that kill the specific protozoan
Malaria is what type of disease? correct answers It is a protozoan disease.
Helminths correct answers Parasitic Worms
What to helminths attack? correct answers specific organs or tissues are attacked
How do you contract helminths? correct answers -eating undercooked beef, pork or fish
containing larval forms of tapeworm
What is schistosomiasis? correct answers caused by a parasitic worm that burrows through the
skin and enters the circulatory system
Routes of Transmission correct answers -direct contact
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