pathogens Flashcards
how are communicable diseases spread?
from person to person, via a pathogen
what are pathogens?
microorganisms that can cause disease
once inside the body, what do bacteria do?
reproduce rapidly
bacteria releases _____ that makes us feel ill by damaging cells and tissues?
bacteria releases toxins that makes us feel ill by damaging cells and tissues
viruses cant reproduce by themselves, they can only reproduce inside a ____ ___?
viruses cant reproduce by themselves, they can only reproduce inside a host cells
first, the virus invades the host cell, what does the virus do after this?
the virus reproduces inside the host cell
when the virus leaves the cell, what happens?
it can cause the cell to burst
what are the 3 ways pathogens can be spread?
direct contact, through the air and through water
what are the 4 ways we can reduce spread of pathogen?
isolation, being hygienic, vaccination and destroying vectors