A mosquito-borne viral illness common in the tropics, causing high fever and body aches, which can turn severe.
Dengue (dengue virus, Aedes mosquito, tropics): sudden high fever, headache, pain behind the eyes, break-bone muscle and joint pain; low platelets; severe dengue is plasma leak, bleeding and shock (worse in a second infection); warning signs are abdominal pain, vomiting, bleeding.
Sepsis
Life-threatening organ dysfunction from a dysregulated response to infection.
Typhoid Fever
A systemic bacterial infection from contaminated food or water, causing a stepwise fever and abdominal symptoms.
Influenza (Including Swine Flu)
A common viral infection of the airways that causes seasonal epidemics and, occasionally, worldwide pandemics.
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.