Respiratory Pathogens

Question 1

Respiratory syncytial virus

Answer 1

Bronchiolitis

Question 2

Parainfluenza virus

Answer 2

Croup

Question 3

Rhinovirus

Answer 3

Common cold

Question 4

Influenza virus

Answer 4

Flu

Question 5

Streptococcus pneumoniae

Answer 5

The most common cause of community-acquired pneumonia

Question 6

Haemophilus influenza

Answer 6

Community-acquired pneumonia
Most common cause of bronchiectasis exacerbations
Acute epiglottitis

Question 7

Staphylococcus aureus

Answer 7

Pneumonia, particularly following influenza

Question 8

Legionella pneumophilia

Answer 8

Atypical pneumonia

Classically spread by air-conditioning systems, causes dry cough, lymphopenia, deranged liver function tests and hyponatraemia may be seen

Question 9

Pneumocystis jiroveci

Answer 9

Common cause of pneumonia in HIV patients. Typically patients have few chest signs and develop exertional dyspnoea

Question 10

Mycobacterium tuberculosis

Answer 10

Causes tuberculosis. A wide range of presentations from asymptomatic to disseminated disease are possible. Cough, night sweats and weight loss may be seen