infection and responses
communicable diseses
protest and bacterial diseases
preventing diseases
viral and fungal diseases
air
direct contact
water
Some pastogens Can be picked up by drinking and bathing in dirty water
E.g. cholera Is a bacterial infection that spread by drinking water contaminated with the diarrhoea of other sufferers
Pathogens can be carried in the air and can then be breathed in
Some airborne pathogens can carry in air in trap let’s produced when you cough or sneeze e.g. the influenza the virus that causes flu is spread this way
Some pathogens can be picked up by touching contaminated surfaces including the skin
E.g. athletes fat is a fungus which makes skin itching flake off its most commonly spread by touching the same thing as infected person e.g. shower floor and towels
This means that less photosynthesis can happen so that the plant doesn’t grow very well
It spreads through the environment in water or by the wind
Ropes blackspots is a fungus that causes purple or black spots to develop a needs of rose plants the leaves can then turn yellow and drop off
Gardeners can treat the disease using fungicides and by stripping the plant of its affect elites this leaves then need to be destroyed so that the fungus can’t spread to other rose plant gardeners can treat the disease using fungicides and by stripping the plant of its affected lights this leaves their need to be destroyed so that the fungus can’t spread to other rose plants
Gonorrhoea is caused by bacteria
A person with gonorrhoea will get pain when they urinate another symptom is a thick yellow or green discharge from the vagina or penis
STDs are passed on by sexual contact e.g. having unprotected sex
Gonorrhoea was originally treated with antibiotics called penicillin but this has become trickier now because traits of bacteria have become resistant to it
Gonorrhoea is a sexually-transmitted disease STD
To prevent the spread of gonorrhoea people have to be treated with antibiotics and should use barrier methods of contraception such as condoms
Destroying vectors
Isolating infected individuals
Being Hygenic
Vaccination
Using simple hygiene measures can prevent the spread of disease doing things like washing your hands thoroughly before preparing food or after you sneeze can stop infecting another person
By getting rid of organisms that spread diseases you can prevent the disease from being passed on
Vectors that are infected can be killed using insec vectors that are infected can be killed using insecticides oh by destroying their habitat so that they can no longer breed the spread of malaria can be reduced by stopping mosquitoes from breeding
If you isolate someone who has a communicable disease it prevents them from passing it on to another person
Vaccinating people and animals and against communicable diseases means that they can’t develop their infection and then pass it on to someone at four example in the UK most popular chicken and turkeys is given a vaccination against salmonella this is to control the spread of the disease