(a)[3]
Explain why tuberculosis (TB) is classified as an infectious disease.
(b)[4]
Outline the role of antibiotics in the treatment of infectious diseases, such as TB.
(c)[2]
Suggest what epidemiological evidence would lead to the conclusion that tobacco smoking is a risk factor for TB.
(d)[3]
Suggest and explain how the effects of smoking can increase the risk of becoming infected with TB.
(e)[2]
Many smokers are aware that tobacco smoking is a risk factor for coronary heart disease, yet they keep smoking. Some of these smokers have said that they expect medical practitioners to cure them if they develop coronary heart disease. List two treatments used by medical practitioners to treat coronary heart disease.