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biology
health and disease
disease
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Created by
Malia Ferguson
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Cards (13)
communicable disease
can be passed on from
person
to person
non-communicable
disease
cant be passed on ( except through
DNA
)
ways of transmission
coughing
sneezing
contaminated food/water
wounds
sexual intercourse
communicable diseases
chicken pox
flu
athletes foot
malaria
non-communicable diseases
type 2 diabetes
cystic fibrosis
cancer
heart disease
4 types of
pathogens
fungi
-
athletes foot
bacteria
-
tuberculosis
virus
-
flu
protists
-
malaria
pathogen
anything that causes disease
transmission of pathogens
contaminated water - cholera
sneezing - tuberculosis
contaminated needles - hiv
vectors (organisms that carry disease) - malaria
contaminated food - salmonella
direct contact - athletes foot
physical barriers
skin
stomach acid
scabs
chemical barriers
tears and saliva contain
enzymes
that kill bacteria
mucus
how
vaccines
work
vaccine enters the body
white blood cells
produce
antibodies
to attack the
microbe
microbe becomes harmless and is destroyed quickly
memory cells
protect the body and destroy the microbe if it ever comes back again
issues with
vaccines
some people are
allergic
they are
expensive
they use animal testing
antigens
allow the
immune system
to recognise foreign cells