5.1 Communicable Diseases Flashcards
What is a communicable disease?
An infectious disease (e.g- flu and tuberculosis)
What are communicable diseases caused by?
Pathogens such as bacteria and viruses that can be spread from one person to another.
What are non-communicable diseases?
Diseases that can’t be transmitted from one person to another.
give 3 examples of factors that also affect health…
1) diet 2) stress 3) life situations
define what is meant by good health…
health is a state of physical and mental well-being.
what causes a majority of communicable diseases in people?
bacteria and viruses
what causes a majority of communicable diseases in plants?
viruses and fungi
what is bacteria?
a single-cell living organism
viruses are even { } than bacteria
smaller
once bacteria and viruses are in the body what do they do?
they reproduce rapidly
what is the process called when bacteria spills into 2?
binary fission
what is binary fission?
when bacteria divides into 2
while binary fission is happening what may be produced?
toxins
what do viruses do?
they take over the cells. they live and reproduce inside the cells, damaging and destroying them.
name 3 common symptoms of diseases?
high temp, headache and rashes.
3 main ways pathogens get from an individual to another?
1) by air 2) direct contact 3) by water.
bacteria dives every … mins?
20 mins
there are a number of ways to prevent bacteria. give 2 ways…
change temp & use disinfectants.
who is Ignaz Semmelweis?
doctor who noticed washing hands- less deaths.
simple hygiene includes…?
1- handwashing. 2- using disinfectants 3- coughing and sneezing into tissues and hands (wash hands after)
what do you do if someone has ebola or cholera?
isolate them.
during a vaccination, doctors….
introduce a harmless dose of pathogen to the body.
main symptoms of measles?
fever + rash
measles can lead to….
brain damage or blindness
