🦟 How to Recognize the Mosquitoes That Spread Dengue Fever

 How to Recognize the Mosquitoes That Spread Dengue Fever

Dengue fever is an acute viral infection caused by the Dengue virus and transmitted primarily by mosquitoes. In many tropical countries, dengue outbreaks occur every year. Knowing how to identify the mosquitoes that spread the disease can help protect yourself and your family.

Two Species Transmit Dengue

According to Preventive Medicine Department, two mosquito species are responsible for spreading dengue: Aedes aegypti (the main vector) and Aedes albopictus.

aedes aegypti (right) - aedes albopictus (left)


These mosquitoes are black with distinctive white spots on their bodies and legs. They thrive during the rainy season when average monthly temperatures rise above 20°C (68°F). Beyond dengue, Aedes mosquitoes can also transmit yellow fever, Chikungunya, and Zika virus.

Close to Humans

Aedes mosquitoes prefer human blood and often live indoors, staying near people. They rest in dark places such as on light-colored clothing, household items, and flower vases.

Their eggs can survive for months in dry conditions. Larvae (wrigglers) develop in a variety of water containers created by human activity: jars, tanks, bottles, flower vases, ornamental ponds, and even boats. Rainwater, air-conditioner drainage pipes, and large cement tanks can also become breeding grounds.

How Dengue Is Transmitted

Aedes mosquitoes are highly adapted to urban environments and are very sensitive to human movement. A female mosquito may stop feeding if it senses slight movement, then return to bite again. This behavior means a single mosquito can bite multiple people in one feeding cycle, spreading the Dengue virus to many individuals in a short time — even if it hasn’t fully drawn blood yet.

Short Life Cycle

The Aedes mosquito has a short life cycle:

  • Eggs hatch into larvae within 4–7 days (longer in poor conditions).

  • Larvae look like tiny commas, live on the water surface, and can dive to escape danger.

  • In 1–3 days, larvae transform into pupae and then adult mosquitoes.

Under ideal conditions, the entire cycle from egg to adult takes 7–13 days. Adult females live 20–40 days and can lay 60–100 eggs per batch, while males live about 9–12 days.

How to Prevent Dengue

1. Eliminate Mosquitoes and Larvae

Use mosquito coils, sprays, or coordinate with local authorities for insecticide spraying. Remove or clean up containers that can hold water where larvae breed.

2. Avoid Mosquito Bites

Install mosquito screens on doors and windows. Use plants known to repel mosquitoes. Sleep under mosquito nets, wear long-sleeved clothing during the day, and apply mosquito repellent.

3. Vaccination

We now offers a dengue vaccine covering all four Dengue virus serotypes (DEN-1, DEN-2, DEN-3, and DEN-4). Vaccination reduces the risk of infection and hospitalization.

🌿 Bottom line: Recognizing Aedes mosquitoes and actively preventing their spread — by eliminating breeding sites, protecting against bites, and getting vaccinated — is the most effective way to fight dengue fever.



Comment

Comments

Post a Comment

Viewed in recent months

The Shoes That Bloomed and the Green Gifts

 Have you ever paused before a humble pot of plants placed outside a small store or a stranger’s home, and suddenly felt your heart soften? Sometimes beauty doesn’t bloom in a manicured garden, but in the most unexpected places — an old shoe filled with soil, a discarded water bottle sprouting life, a broken jar reborn as a cradle for green leaves. The Shoes That Bloomed and the Green Gifts Someone must have cared enough to save that shoe, to fill it with earth, to plant a seed — a small act of quiet hope. I often stop before such little miracles: a pair of worn-out shoes transformed into tiny gardens, resting by the doors of ordinary homes. If you look closely, you’ll see that each tells a story. Perhaps they belonged to someone who once marched in them, fought in them, or simply walked through hard days. Now, they hold life instead of footsteps. Each blossom that springs from a scarred object seems to whisper: “Nothing is truly wasted, not even what’s been hurt.” One of my n...
Read more

The Fall of a Digital Empire: What the Chen Zhi Case Reveals About the Dark Side of Tech Wealth

 When the U.S. Department of Justice announced charges against Chen Zhi , the chairman of Cambodia’s Prince Holding Group , the headlines sounded almost unreal. Chen Zhi -    Prince Holding        A billionaire businessman, celebrated as a symbol of Southeast Asian growth, now accused of running one of Asia’s largest transnational criminal networks — involving crypto fraud, human trafficking, and money laundering on a staggering scale.      According to the DOJ, Prince Holding was not a symbol of progress, but a front for exploitation . Behind its polished image of corporate success were forced-labor compounds where trafficked workers were reportedly made to run crypto investment scams. These operations stole billions of dollars from victims across the world, including thousands in the United States.      The seizure of more than 127,000 Bitcoins , valued at nearly $15 billion , marks the largest cryptocurrency conf...
Read more

Why Some Countries Still Have Kings: Understanding Modern Monarchies

 It might surprise you, but more than 40 countries around the world still have kings, queens, emperors, or sultans today. From ancient royal dynasties in Europe to modern ruling families in Asia and the Middle East, monarchies continue to exist — and even thrive — in the 21st century. But what does “having a king” actually mean in modern politics? Are these rulers powerful, or are they just national symbols? Let’s take a closer look at how different types of monarchies work, and why some nations continue to hold onto their royal traditions. What Exactly Is a Monarchy? A monarchy is a system of government where the head of state is a monarch — usually a king, queen, emperor, or sultan. Most monarchs inherit their position by birth, often staying in power for life. However, monarchies today vary widely in their structure and power. Some monarchs rule with absolute authority, while others serve as figureheads under a democratic government. In short: not all kings are created equ...
Read more

The 10 Most Beautiful Islands in the World, 2025

 A journey through turquoise dreams, sunlit shores, and soul-healing horizons. Each year, nearly a million travelers vote in Condé Nast Traveler’s Readers’ Choice Awards , choosing the islands that stole their hearts — not just for postcard views, but for the feelings they evoke: freedom, wonder, and peace. The 2025 rankings celebrate destinations that define paradise. From coral-ringed lagoons to mist-covered cliffs, these islands offer more than beauty — they offer belonging. 🥇 1. Turks and Caicos – Caribbean (98.91/100) Imagine waking up to a world where the ocean fades from sapphire to crystal blue, and the sand feels softer than silk. Turks and Caicos tops the list for a reason. Snorkel through Grace Bay’s coral gardens , sip rum cocktails as pastel sunsets melt into the horizon, and drift into nights filled with calypso rhythms. It’s where time slows — and every moment glows. 🥈 2. St. Barts – Caribbean (98.78/100) Where French sophistication meets tropical seduction...
Read more

The Light Within Us: How Wave–Particle Duality Reflects the Entanglement of Body and Mind

by LeChat  For over a century, physicists have chased a question that sounds almost poetic: What exactly is light? Is it a wave — an elegant, continuous vibration moving through space? Or is it a particle — a discrete packet of energy, a photon, carrying the fire of the universe in the smallest possible form? After centuries of wonder, science found an answer stranger and more beautiful than anyone expected: Light is both. It is simultaneously a wave and a particle — two realities in one being. This paradox, known as wave–particle duality , reshaped not only physics but also our understanding of what “reality” might mean. In 1801, Thomas Young’s famous double-slit experiment showed that light behaves like a wave , capable of interference and diffraction. A century later, Albert Einstein revealed that light also behaves as particles , or photons, explaining how each photon could knock electrons free in the photoelectric effect . Two opposing truths, both real. Waves explain ...
Read more

Drinking Culture: A Personal Choice or a Social Construct?

Across much of the world, alcohol is more than a drink — it is a ritual, a signal of belonging, a lubricant for social life. In 2025, The police launched a campaign to test drivers’ blood-alcohol levels ahead of the New Year, the move reignited a familiar debate: can stricter laws truly reshape drinking behavior, or is alcohol use too deeply rooted in cultural and social norms to be governed by legislation alone? Around the world, societies have long struggled to balance alcohol’s role as both a social glue and a public health hazard. To understand why alcohol consumption persists despite well-known risks, one must look not only at individual choices but also at the powerful web of cultural, religious, and economic forces that make drinking a shared social act rather than a private habit. From Individual Choice to Collective Meaning In 1897, French sociologist Émile Durkheim proposed a revolutionary idea: even the most personal acts, such as suicide, have social causes. He found t...
Read more

Is Reality Just a Measurement?

 Where does the universe end? Where does infinity begin? And if time itself had a starting line…what does that make us — travelers, or just illusions moving through a system we invented? Let’s start with the edge of everything.  If you flew in a straight line across the universe, you’d never find a wall. No sign that says “You’ve reached the end.” Space doesn’t stop — it bends.  The universe curves back on itself, like the surface of a balloon. It’s expanding, stretching, but has no edge. You can travel forever and never leave it. That’s not magic — it’s geometry . Right now, the farthest light we can see left its galaxy 13.8 billion years ago. But because space itself has been stretching, that galaxy is now about 46.5 billion light-years away.  That’s the edge of the  observable universe — not the edge of the universe itself. Beyond that, there may be countless galaxies we’ll never see, because their light will never reach us. In other words, what we call ...
Read more

The Paradox of Voice: Why Birds Speak and Mammals Stay Silent

 In the wild symphony of life, one mystery echoes louder than any birdsong: Why can a parrot talk like a human, while a chimpanzee — our genetic cousin — never utters a word? At first glance, it feels backward. Apes share 98% of our DNA. Their emotions, gestures, and intelligence mirror ours. Parrots, in contrast, are tiny feathered creatures with brains smaller than a walnut. And yet, when you say “Hello,” it’s the parrot that answers back.  The Secret Organ of Song Hidden deep in a bird’s chest is a tiny instrument called the syrinx — a masterpiece of evolution. Unlike the human larynx , which vibrates in one place, the syrinx splits into two chambers, each capable of producing independent notes. A mockingbird can sing a duet with itself. A parrot can reproduce the rhythm, tone, and accent of human speech with uncanny accuracy. This isn’t luck — it’s fine motor control . Birds can adjust airflow and muscle tension in milliseconds, shaping sounds as complex as o...
Read more

There’s a tiny island on Earth where nature did something incredible.

Humans left… and the animals moved in. No, this isn’t a Disney movie—it’s real life. Welcome to the island where animals took over abandoned human space. When humans left this place behind, it wasn’t because of a war or a curse. It was simply… inconvenient. Too remote, too harsh, too costly to keep people living there. But for nature, that was an open invitation. Within a few years, the roads cracked, the buildings crumbled, and the jungle started sneaking back in—one vine at a time. Then the animals arrived. Foxes and raccoons built dens inside old factories. Deer grazed in parking lots where cars once sat. Birds turned telephone poles into their luxury condos. Even bears started wandering down main streets as if they’d been elected mayor. And here’s the wild part: without humans, everything became… healthier. Air pollution dropped. Plants exploded in growth. Waterways cleared up. Scientists call it “rewilding” —when ecosystems heal themselves once people step aside. There...
Read more

If California were its own country - it would be a global powerhouse, blending natural beauty, innovation, and culture like nowhere else on Earth

If California were its own country, it wouldn’t just be another place on the map — it would be a global powerhouse, blending natural beauty, innovation, and culture like nowhere else on Earth. Let’s imagine it. Located on the western edge of North America, California stretches over a thousand kilometers from the Mexican border all the way up to Oregon. It’s the third largest U.S. state by area, covering mountains, deserts, forests, and an endless coastline along the Pacific Ocean. From the snow-capped peaks of the Sierra Nevada to the golden beaches of Malibu , California contains nearly every landscape you can imagine — all inside one border. Its climate is just as diverse. Along the coast, summers are warm and breezy, while inland valleys can reach scorching temperatures above forty degrees Celsius. Up north, towering redwoods thrive in cool, misty air; down south, the Mojave Desert bakes under relentless sun. This mix of microclimates makes California both a paradise for trav...
Read more