communicable diseases Flashcards
communicable
a disease that you can spread
caused by pathogens ex: malaria, HIV
Non-communicable
a disease that can’t be spread
not caused by pathogen ex: Cancer
pathogens
microorganisms that cause disease
bacteria
make toxins/destroy cells and they are prokaryotes no nucleus
viruses
kill cells/damage cells whilst reproduced
How pathogens are spread?
water
air
direct contact
binary fission
The way bacteria multiply
Physical barriers
skin, cilia, mucus, nose hairs
chemical barriers
hydrochloric acid in stomach
Lysozymes in tears
What do white blood cells do?
ingest pathogens
make antibodies
make antitoxins
Salmonella and gonorrhoea
bacterias
HIV TMV Measles
viruses
Salmonella symptoms
treatment
spread
prevented
fever, abdominal cramps, vomiting
no antibiotics
undercooked/ raw food
cook food properly
Gonorrhoea symptoms
treatment
spread
prevented
discharge, pain in urination
antibiotics
sexual contact
condoms
HIV symptoms
treatment
spread
prevented
mild flu
no cure
direct sexual contact
condoms
TMV symptoms
treatment
spread
prevented
discolouration, can’t carry out photosynthesis, affects growth
no cure
contact between plants
removing plants
Measles symptoms
treatment
spread
prevented
fever red skin, blindness, brain damage, death
no cure
coughs and sneezes
vacination
Maleria symptoms
treatment
spread
prevented
high fever, headaches, shaking, muscle pains
medication
mosquitos, caused by a protist
mosquito nets
what are protists
- eukaryotes, single celled
- some are parasites, live on or in organisms-cause damage
- transferred to the organism by a vector
fungi
- single cells
- others have a body made up of hyphae
- penetrate human skin and plants
- produce spores
