Dengue fever

Dengue (break-bone fever) is a viral infection that spreads from mosquitoes to people. Most of the times the infected individual will not experience any symptoms. If symptoms do appear, they include high fever, headache, body aches, nausea, and rash that last for one to two weeks and sometimes hospitalization is required. In severe cases, dengue can be fatal.

Hepatitis A

Hepatitis is a virus that affects the liver, causing its enlargement and can sometimes result in liver failure. Hepatitis A is primarily spread through food and water contamination. Liver function is impaired temporarily, but the damage usually reverses fully. The individual needs approximately 28 days to recover. The symptoms include fatigue, nausea and vomiting, loss of appetite, abdominal discomfort and dark urine. Hepatitis A rarely leads to death, especially in healthy individuals.

Malaria

Malaria is a life-threatening parasitic disease transmitted by the bite of infected mosquitoes in tropical and subtropical regions. The parasites enter the bloodstream and infect the liver cells and the red blood cells causing fever and chills. Malaria can cause systemic inflammation, organ failure, and death. The treatment depends on the type of the parasites.

Typhoid fever

Typhoid fever is a bacterial infection transmitted via contaminated food or water. Symptoms include high fever, headache, constipation which soon changes to diarrhoea and a rash which usually appears on the chest and abdomen. Typhoid fever can be serious and potentially fatal, but it usually progresses over days to weeks, not within a very short time.

Gonorrhoea

Gonorrhoea is a sexually transmitted infection, not a tropical disease, and is not fatal in the short term. It affects mucous membranes, primarily of the genital tract, but can also infect the rectum, throat, eyes, and in rare cases, the joints and bloodstream. Early detection and antibiotic treatment are essential, and the symptoms differ between men and women.

Dengue fever ⇒ fatal only in severe cases
Hepatitis A ⇒ rarely leads to death, especially in healthy individuals
Malaria ⇒ can cause systemic inflammation, organ failure, and death
Typhoid fever ⇒ can be serious and potentially fatal, but it usually progresses over days to weeks, not within a very short time.
Gonorrhoea ⇒ a sexually transmitted infection, not a tropical disease, and is not fatal in the short term.