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Treatment and control Strategy Example Advantage Disadvantages Use of pesticides Spraying to kill aphids carrying potato leaf roll virus the spread insect pests detrimental effect environment development resistant strains cost chemicals antibiotics Using penicillin bacterial infections effective disease that saves lives lots diseases curable many no longer research side effects Medical intervention procedures surgery triple bypass chemotherapy for cancer higher quality life patient . Samples of Sydney drinking water are tested throughout all stages treatment for things like coliform bacteria colour and turbidity. HSC Biology tutoring at Dux College provides students with the right support achieve band result . Process information from secondary sources to discuss problems relating antibiotic resistance Often we recognise infection by the symptoms it causes | https://en.wikipedia.org/wiki/Special:Search

Diptheria is caused by bacterium Corynebacterium diptheriae and produces toxin that can harm destroy human body tissues organs. falciparum . Plant disease preventing spread across Australia. Antibiotics are often the cause as they kill natural bacteria that keep fungus in check

Identify and describe the main features of epidemiology using lung cancer as example. A side effect of all drugs is that the patient unprotected from pathogens. Both flasks were left for few weeks. An immune response occurs and the system attacks transplanted tissue. Outbreaks were common and casefatality rates reached in some areas during major diphtheria epidemic Europe US

It was cheaper and easier to take than Salk injectable vaccine. Cell specialisation very important as unspecialized cells form tumours. Explain how one of the following strategies has controlled and or prevented disease public health programs pesticides genetic engineering to produce plants animals are chemicals that destroy organisms considered be pests . Explain why organ transplants should trigger immune response . DDT is a pesticide that was used during WWII to destroy body lice order control typhus fever. Range of T lymphocyte types and the difference in their roles Killer cytotoxic cells Tc Attack destroy body that have been infected by antigen producing chemicals perforins which cause membrane rupture lyses Helper Secrete such as lymphokines interleukins stimulate cloning macrophages phagocytosis Memory Remain reactivate quickly with subsequent infections same Suppressor Stop production antibody when destroyed Outline way vaccinations prevent method providing artificially acquired immunity without need person suffered disease initially. Polio Poliomyelitis an infectious viral disease which cripples and can be fatal mostly affecting children under five. In Ronald Ross discovered the malarial parasite stomach of an Anopheles mosquito. Antigens on the surfaces of cell membranes mark it as foreign and will trigger immune response. Plausible mechanism trend observed should confer with physiological understanding confirmed by clinical studies Chemicals cigarette smoke identified as carcinogens that they can cause lung cancer. The trend that smoking correlates with higher incidences of lung cancer should be observed across variables. North Australia is of extreme strategic importance in terms quarantine because its proximity to the SouthEast Asia and Pacific region. Yet it is possible for a healthy person to have disease if she manages