What is Malaria? Check Symptoms, Causes, and Prevention
Explore malaria in the global travel era as vector mosquitoes spread via flights. Check the three symptom stages, causes, and safe prevention methods.
Stock photo for illustration only, not from the actual event
- Malaria vector mosquitoes can travel globally through air transportation.
- Symptoms are divided into three main stages: chills, high fever, and sweating.
- Severe infections like Plasmodium falciparum can be fatal if treated late.
- Prevention includes applying insect repellent, wearing covered clothing, and sleeping under nets.
Malaria is a disease long familiar to people, typically found in forest or tropical regions. However, in the modern era, international travel and logistics have transformed significantly. The phenomenon of mosquitoes boarding airplanes reflects how vector mosquitoes can cross the globe via air transport, allowing individuals who do not visit forests or high-risk areas to also contract the infection.
Comparing Anopheles mosquitoes (malaria vectors) with Aedes mosquitoes (dengue vectors) reveals distinct differences:
- Feeding Time: Anopheles mosquitoes usually feed from dusk to dawn (nighttime), whereas Aedes mosquitoes feed primarily during daylight hours.
- Resting Posture: Anopheles mosquitoes tilt their tails upward at a 45-degree angle to the surface, while Aedes mosquitoes rest parallel to the surface with black and white stripes.
- Breeding Grounds: Anopheles mosquitoes thrive in natural water sources, clear water, and forest streams, while Aedes mosquitoes prefer stagnant water in household containers such as tires and pots.
Generally, infected individuals begin showing symptoms within 7 to 30 days after being bitten, characterized by three distinct stages.
Stock photo for illustration only, not from the actual event
The three symptom stages include the chill stage, featuring severe shivering, chattering teeth, stiff body, and goosebumps lasting about 15-60 minutes. This is followed by the high fever stage, where body temperature spikes to 39-40 degrees Celsius, accompanied by flushed face, extreme heat, severe headache, nausea, and vomiting lasting 2-6 hours, and concluding with the sweating stage where profuse sweating occurs, body temperature drops rapidly, and the patient feels fatigued and falls asleep.
From a modern public health perspective, the issue of exotic vector insects spreading through international travel and civil aviation, known as airport malaria, poses a growing challenge as warmer climates facilitate mosquito breeding in previously unaffected areas. Screening and disease surveillance must therefore extend beyond traditional forest-going populations.
"If infected with a severe strain like Plasmodium falciparum, delayed treatment can lead to severe complications such as cerebral malaria, kidney failure, or severe anemia resulting in death."
Thairath Lifestyle
Anyone experiencing suspected symptoms should visit a hospital immediately and avoid self-medicating. For diagnosis, doctors will draw blood to examine parasites under a microscope or use a Rapid Diagnostic Test. Treatment involves anti-malarial medications depending on the parasite species and severity, such as Artemisinin-based Combination Therapy (ACTs), along with intravenous fluids and fever reducers.
To protect oneself against malaria, individuals can follow these prevention guidelines:
- Apply Repellent: Use insect repellent containing DEET or Icaridin when going outdoors or entering risk areas.
- Cover Up: Wear long-sleeved shirts, long pants, and light-colored clothing.
- Sleep Under Nets: Use mosquito nets or insecticide-treated nets, especially when camping or staying in forested areas.
- Take Preventive Medication: Individuals required to travel to high-transmission areas should consult a doctor in advance for prophylactic treatment.
Although malaria is a familiar disease, risks in the modern world can spread unexpectedly through international travel and transport. Observing high fever alternating with chills and seeking prompt medical attention for blood testing remain the keys to safe and timely treatment.
Source: Thairath Lifestyle
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