INFECTIOUS DISEASES - Year 12 Science - Biology Infectious Diseases - LibGuides at Presbyterian Ladies' College (Western Australia)

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When accessing content use the numbers below to guide you:

LEVEL 1:
brief, basic information laid out in an easy-to-read format. May use informal language. (Includes most news articles)

LEVEL 2:
provides additional background information and further reading. Introduces some subject-specific language.

LEVEL 3:
lengthy, detailed information. Frequently uses technical/subject-specific language. (Includes most analytical articles)

Bacterium A member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some which can cause disease.
Epidemic A widespread occurrence of an infectious disease in a community at a particular time. ‘a flu epidemic’
Microorganism A microscopic organism, especially a bacterium, virus, or fungus.
Pandemic (of a disease) prevalent over a whole country or the world.
Parasite An organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense.
Pathogen A bacterium, virus, or other microorganism that can cause disease.
Prion A protein particle that is believed to be the cause of brain diseases such as BSE, scrapie, and CJD. Prions are not visible microscopically, contain no nucleic acid, and are highly resistant to destruction.
Vector A bacteriophage or plasmid which transfers genetic material into a cell, or from one bacterium to another.
Virus An infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host. ‘the hepatitis B virus’

SARS - A Modern Epidemic
SARS is a virus in the same group as the common cold, cornonviruses. Unlike the common cold, it kills 10% of the people it infects.

What we do
We are the directing and coordinating authority on international health within the United Nations’ system.
Ongoing health emergencies
The health emergencies list details the disease outbreaks, environmental disasters and other humanitarian crises in which WHO has played or is still playing an essential role in protecting health.
Outbreak | Animal and plant pests and diseases
Australian Government: Respond to, prevent and prepare for animal and plant pest and disease outbreaks.

Infectious disease
Infectious disease, in medicine, a process caused by a microorganism that impairs a person’s health. An infection, by contrast, is the invasion of and replication in the body by any of various microbial agents...
Infectious diseases
Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful, but under certain conditions, some organisms may cause disease.
Emerging Disease Issues
This is a link to The Pennsylvania State University course on infectious diseases. It has a list of short videos introducing the impact of diseases on global and domestic levels.

Influenza; vaccine
There are dozens of types of influenza viruses that cause flu symptoms. The avian flu: H5N1. These letters and numbers identify variations in two different proteins on the surface of an influenza virus-- H for hemagglutinin, which has 18 subtypes, and N for neuraminidase, which comes in 11 varieties.

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