MicroOrganisms / Infecious diseases
by: Juanita Ledwell
Many Micro Organisms cause Disease.
The basic characteristics of viruses, bacteria, fungi, and parasites relating to the spread, treatment and prevention of disease/ Important information that has been discussed in class:
- Non living
- Affect living
- Need a host cell to attack/ reproduce
- Invade healthy cells and kill
- Vaccines control and prevent (DO NOT TREAT)
- Are prokaryotic, single celled organisms.
- Live in a variety of places
- With or without Oxygen ( hot/cold oxygen) and in extreme conditions
- Reproduce through binary fission
- Are eukaryotic, multi-cellular heterotrophs
- Reproduce by producing spores
- Attack the tissue of living plant/ animal to cause disease
- Attack humans and also food sources
- Organisms that feed on another individual, known as a host.
- Can live on/ inside a host's body
- Typically found in the intestines, blood, or tissue of living things Ex: Tapeworm
The difference between epidemic and pandemic as it relates to the spread, treatment and prevention of disease:
An outbreak of a disease that affects many people in an area of a specific country or region. Ex: SARS (severe acute respiratory syndrome) (2003)
An endemic that spreads over a very large area or through out the entire world
Ex: Black Plague (1346 - 53), Spanish Flu (1918), Asian Flu (1957), Swine Flu (2009 - Present)
Outbreak, Epidemic, Pandemic
the epidemics is more severe then the outbreak but less severe than the pandemic which is world-wide.
Outbreak, Epidemic, Pandemic
This is a visual example of how the 3 are different and how severe they are compared to each other.
These are examples of different kinds of diseases that are part of micro organisms.
- Outbreak- Occurrence of a disease greater than would otherwise be expected at a particular time and place.
- Epidemic- An outbreak of a disease that effects many people in an area of a specific country or region.
- Pandemic- An epidemic that spreads over a very large area or through out the 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, Ex: amoebas and algae
- Viruses- A nonliving 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. Ex: mushroom, yeast, or mold.
- Host cell- A call that a virus invades, takes 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 diseases are placed.