Microorganisms & infectious disease

8.L.1.1 and 8.L.1.2


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 a specific country or region
Pandemic- an epidemic that spreads over a very large area or throughout the entire world
Vector- an organism typically an insect,that transmits a disease.
Pathogen- a virus,bacteria,fungi,parasite.or protozoa that can cause illness and infection.
Protozoa- divers organisms that cannot be classified as animals,,plants,or fungi
examples:amoebas and algae.
Virus- a non-living pathogen that can change mutate.It infects a host cell and replicates to cause illness or 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.
examples:mushrooms,yeast.or mold
Host cell- a cell 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 disease are placed.
microbiology is the study of microscopic organisms.Like bacteria,viruses,fungi, and protozoa.


viruses are non-living but affect living things.they have to have a host cell to reproduce.The invade healthy cells to reproduce.they can be passed around by human-contact,insets, and water.here are some common viruses HIV/AIDS,Influenza,Polio, and chickenpox


they are prokaryotic .They are unicellular.they can live with oxygen or without oxygen.They can also live in extreme conditions.they produce by binary fission.They split into 2 identical cells.can be spread by things like coughing, sneezing and surfaces,They live mostly in warm moist areas.here are some examples rabies,Lyme disease,and Leprosy. they can be classifed by three different shapes.Spherical,Rod like,and spiral.