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viral and fungal diseases & preventing diseases (measles (people with…
viral and fungal diseases & preventing diseases
measles
people with measles develop a red skin rash and then show signs of a fever
measles can be very serious or even fatal if there are complications
measles is spread by droplets from an infected persons sneeze or cough
most people are vaccinated against measles when they are young
hiv
hiv initially causes flu like symptoms for a few weeks usually don't exipience any more symptoms
the virus attacks the immune cell
hiv is a virus spread by sex or exchange of bodily fluids like blood
if the body's immune system is badly damaged it cant cope with other infections
tobacco mosaic virus
it can cause a mosaic pattern on the l of the plants parts of the leaves become discoloured
the discolouration means the plant cant carry out photosynthesis and die
tobacco mosaic virus is a virus that affects many species of plants
rose black spots
less photosynthesis happnds
spreads through the environment water and wind
rose black spots is a fungus that causes purple and black spots to develop on the leaves of rose plans
gardeners have to get rid of the infected leafs
being hygienic
using simple hygienic measures can prevent and spread diseases
doing things like washing your hands thoroughly before leaving the bathroom
destroying vectors
by getting rid of the organism that spread diseases you can prevent the disease from being passed on
vectors that are insects can be killed using insecticides or by destroying their habits so they can no longer breed
isolation infected individuals
if you isolate someone who has a communicable disease it will prevent spreading
vaccinations
vaccinating people and animals against communicable diseases means they cant develop the infection and then pass it on
in th uk most chickens and turkeys are given vaccinations