infectious diseases

By: Caleb Gainey

The Standard

8.L.1.1 Summarize the basic characteristics of viruses, bacteria, fungi, and parasites relating to the spread, treatment and prevention of disease.



8.L.1.2 Explain the difference between epidemic and pandemic as it relates to the spread, treatment and prevention of disease.

Microbiology

Microbiology is organisms that are too small to see with a naked eye. Things like bacteria, fungi, and viruses.

Viruses

Viruses are considered to be non-living but they affect living things. For a viruses to attack or reproduce it needs a Host Cell. Ex. Flu, Polio, HIV, Ebola, Chicken pox, West Nile.

Bacteria

Bacteria cells are Prokaryotic, they lack nucleus and other organelles. Bacteria are unicellular(single cell). Bacteria is Spread by Direct/Indirect contact Droplet (sneezing,coughing) Ex. Rabies, Lyme, Bacterial.

Fungi

Fungi is a singlecelled organism that can decompose organic matter. Ex. Mushrooms, Yeast, Mold.

Parasites

An organism that lives in or on another organism called a host and often harming it in the process. Ex. Tapeworms, Fleas, Barnacles.

Outbreak,Epidemic,Pandemic

Outbreak- Occurrence of a disease greater than would otherwise be expected at particular time and place.


Epidemic-An outbreak of a disease that affects many people in an area of a specific country or region


Pandemic-An Epidemic that spreads over a very large area or throughout the entire world.

Difference Between Epidemic and Pandemic

Epidemic is one large outbreak in one place but a Pandemic is a lot of larger outbreak all across the world.

Vocabulary

Outbreak-Occurrence of a disease greater than would otherwise be expected at a particular time and place.


Epidemic-An outbreak of a disease that affects many people in an area of a specific country or region.



Pandemic-And epidemic that spreads over a very large area or throughout the entire world.


Vector-An organism typically an insect, that transmits disease


Pathogen-A virus, bacteria, fungi, parasite, or protozoa that can cause illness and infection.


Protozoa-Diverse organisms that cannot be classified as animals, plants, or fungi


Virus-A non-living pathogen that can change mutate. It infects a host cell and replicates to cause illness and disease.


Bacteria-Single-celled prokaryotes that can cause disease. Multiply rapidly and can form colonies


Parasite-An organism that lives in or on another organism, called a host, taking nutrients and often harming it in the process.


Fungi-A single-celled or multi-cellular organism that can decompose or absorb organic matter.


Host Cell-A call that a virus invades, take over, and makes copies of itself.


Quarantine-A time or place of isolation in which people or animals that have been exposed to infectious or contagious disease are placed.