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A common viral infection of the airways that causes seasonal epidemics and, occasionally, worldwide pandemics.
Influenza (types A and B, droplet spread): sudden fever, aches, headache, dry cough, exhaustion; surface proteins drift (vaccine updated) and can shift to a new pandemic strain (2009 swine flu H1N1); severe in the very young, old, pregnant and chronically ill.
Sepsis
Life-threatening organ dysfunction from a dysregulated response to infection.
Dengue Fever
A mosquito-borne viral illness common in the tropics, causing high fever and body aches, which can turn severe.
Typhoid Fever
A systemic bacterial infection from contaminated food or water, causing a stepwise fever and abdominal symptoms.
Tuberculosis
A chronic infection by the tuberculosis bacillus, most often of the lungs, spread through the air and a major global disease.
Post-Exposure Prophylaxis
Preventive treatment given soon after a possible exposure to a serious infection, to stop it from taking hold.