Pathogens
Organisms that cause disease
Infectious Disease
Infections caused by pathogens
how do pathogens make yous sick?
by damaging individual cells
how does your body prevent the spread of disease?
by killing pathogens
how are different diseases caused?
different pathogens control different diseases
What are the four major groups of human pathogens?
protists, fungi, viruses, bacteria
how does bacteria hurt your body?
pathogens directly damages the cells in your body or produce toxins that damage cells
3 examples of bacteria caused disease
ear infections, food poisoning and strep throat
1 example of a indirect bacteria caused diseased
tetanus
How does a virus hurt your body?
they cannot reproduce unless they are inside a cell, this process damages or destroys the cell
2 examples of viruses
colds and flues
Where does fungi grow?
in warm, dark, moist areas
What are two examples of fungi caused diseases
athletes foot and ringworm
What are 3 examples of protist caused diseases
malaria, african sleeping sickness and amebic dysentery
what are the ways your body can become infected by a pathogen?
soil, food, water, infected people, infected objects, infected animals
How are pathogens spread through infected people?
through physical contact
How do soil food and water spread pathogens?
pathogens contaminate food, soil and water, these pathogens are created naturally in the environment
2 examples of diseases caused by soil, food and water
cholera, dysentery
How do contaminated objects cause disease?
you touch contaminated object and the pathogens on it enter your body through your skin
How do infected animals cause disease?
pathogens in animal are transferred when it bites you
How do pathogens cause an infectious disease?
organism that cause disease get inside the human body and cause harm
How did pasteur and Koch contribute to the understanding of the causes of infectious diseases?
Koch: realized different pathogens controlled different diseases Pasteur: realized killing pathogens could stop the spread of disease
What to ways do bacteria cause disease?
indirect and direct