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Showing posts with the label mosquito-borne diseases

“Mosquito-Borne Diseases in 2025: Why ‘Suitcase Viruses’ Are a Global Threat”

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  *Introduction - As we move deeper into the 21st century, the global health landscape is witnessing an alarming rise in mosquito-borne diseases. Once considered seasonal nuisances, these infections now pose year-round threats, spreading faster and further than ever before. Climate change, urbanization, and globalization have created a perfect storm for mosquitoes to thrive, making public health alerts more urgent than ever. This article dives deep into: The latest viral public-health alerts The rise of mosquito-borne threats Underlying causes, global hotspots, and economic impact Actionable prevention strategies Future outlook with vaccines and technologies --- Section 1: Why Are Viral Public-Health Alerts Increasing? Public-health alerts are triggered when outbreaks threaten large populations or have pandemic potential. In 2025, WHO, CDC, and several health agencies have issued warnings about mosquito-borne illnesses, particularly dengue, chikungunya, Zika, and West Nile virus. K...

The Bite That Hurts: Malaria Transmission Explained

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  Overview - Malaria is an acute febrile illness caused by protozoan parasites of the genus Plasmodium . It remains one of the world’s most significant public health challenges, particularly in tropical and subtropical regions. The disease is transmitted to humans through the bite of an infective female Anopheles mosquito. 1. Causative Agents There are five Plasmodium species known to commonly infect humans: Plasmodium falciparum – the most lethal and widespread in sub-Saharan Africa Plasmodium vivax – causes relapsing malaria; prevalent in Asia and Latin America Plasmodium ovale – similar to P. vivax but less common; found in West Africa and the Pacific Islands Plasmodium malariae – causes a more chronic infection; scattered distribution worldwide Plasmodium knowlesi – zoonotic malaria from macaque monkeys; emerging in Southeast Asia 2. Life Cycle & Transmission Sporozoite Stage (Mosquito → Human): ...

Dengue Outbreak Guide: Prevention, Care, and Early Warning Signs

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  - Dengue is a viral infection transmitted by *Aedes* mosquitoes, common in tropical and subtropical regions. - Symptoms likely include high fever, severe headache, joint/muscle pain, rash, and mild bleeding, appearing 4–10 days after a bite. - Severe dengue (dengue hemorrhagic fever) can cause life-threatening complications like bleeding or organ failure. - Evidence suggests no specific antiviral treatment exists; supportive care (hydration, pain relief) is key. - Prevention focuses on mosquito control and vaccines like Dengvaxia, used in high-risk areas.   *Overview - Dengue is a mosquito-borne viral disease caused by four dengue virus serotypes (DENV-1 to DENV-4), spread primarily by *Aedes aegypti* and *Aedes albopictus* mosquitoes. It’s a major public health issue in over 100 countries, particularly in Asia, the Pacific, the Americas, Africa, and the Caribbean, with an estimated 100–400 million infections annually. While most cases are mild or asymptomatic,...