Key Takeaways
- Mosquitoes cause nearly 700,000 deaths worldwide annually, primarily from diseases like malaria and dengue fever.
- Although mosquito-related deaths in the US are significantly lower—usually fewer than 100 per year—West Nile virus remains the primary threat.
- Factors like climate change, global travel, and urban mosquito breeding make mosquitoes an ongoing issue in the US.
- Simple household actions, such as eliminating standing water, using repellents, and maintaining screens, effectively minimize mosquito risks.
- Protecting pets from heartworm, transmitted by mosquitoes, is an essential part of your family’s mosquito defense strategy.
- Supporting local community mosquito control efforts significantly contributes to reducing mosquito populations and protecting public health.

What Makes Mosquitoes the Deadliest Animal Out There?
- Mosquitoes aren’t deadly just because they’re irritating pests. It’s all about what they carry—deadly diseases transmitted through their bites. Every single year, mosquitoes cause roughly 700,000 deaths globally. That’s way more fatalities than sharks, snakes, or even humans cause. Most of these deaths happen in places with tropical climates and limited medical care.
Here’s a quick breakdown of what mosquitoes typically spread:
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Malaria: Transmitted by Anopheles mosquitoes, malaria causes over 600,000 deaths yearly, mostly in sub-Saharan Africa, especially among children.
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Dengue Fever: A painful and dangerous disease common in tropical regions like Asia and Latin America, with tens of thousands of deaths annually.
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West Nile Virus: Most common in the U.S., it can cause severe neurological conditions like encephalitis and meningitis.
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Yellow Fever & Zika Virus: Though less deadly due to vaccines and improved healthcare, both remain public health concerns in some tropical regions.


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Get your free pest control estimate today!What About Mosquito-Related Deaths in the US?
- Here’s the thing—the situation in the United States is a bit different. Thankfully, mosquito-related deaths in the US are significantly lower compared to the global numbers. But make no mistake, mosquitoes are still more than just a nuisance.
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Eastern Equine Encephalitis (EEE): Rare but deadly, with a 30% fatality rate—mainly along the Atlantic and Gulf Coasts.
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Dengue & Zika: Occasionally appear in warm states like Florida, Texas, and Hawaii, often contained quickly by health authorities.
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La Crosse Encephalitis: Affects children in the Midwest and Appalachians, rare but potentially neurologically damaging.
On average, mosquitoes cause fewer than 100 deaths annually across the US, with West Nile virus being the biggest culprit. Ever since its introduction in 1999, West Nile virus has settled in nationwide, leading to severe illness in approximately one in 150 infected individuals. In 2022 alone, it was responsible for 79 deaths, underlining that mosquitoes remain an ongoing threat.
Other mosquito-borne illnesses to watch out for include:
Why Are Mosquitoes Still Hanging Around the US?
- It’s a fair question: if the US is so advanced medically, why can’t we just get rid of mosquitoes for good? Several factors keep mosquitoes relevant here:
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Climate Change: Warmer weather extends mosquito seasons and expands their habitats, increasing the risk of disease spread.
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Global Travel: Travelers can bring back mosquito-borne viruses like dengue or Zika, causing local outbreaks.
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Urban Mosquitoes: Species like Aedes thrive in cities, breeding in tiny amounts of standing water—making control more difficult.

How You Can Protect Your Family
Luckily, keeping mosquitoes away doesn’t have to be complicated. Here are straightforward steps you can easily follow: Ditch the Standing Water Mosquitoes love still water for breeding. Make it a routine to empty birdbaths, buckets, flower pots, old tires, clogged gutters, or even children’s toys. A weekly walk around your property can drastically cut down mosquito numbers. Screen Them Out Ensure windows and doors have intact screens. Mosquitoes sneaking into your home is something you can avoid. Regularly check and patch holes—trust me, it makes a difference. Repellents Are Your Friend Are you heading outside around dawn or dusk? Slap on some EPA-approved mosquito repellent containing DEET, picaridin, IR3535, or lemon eucalyptus oil. It takes seconds and provides solid protection. Dress for Success (Against Mosquitoes) Long sleeves and pants might seem like a hassle, especially in summer, but they significantly reduce bites. Wearing loose-fitting, light-colored clothing can keep mosquitoes from zeroing in on you. Fans and Citronella? Sure Thing! Have you ever noticed mosquitoes struggling to fly in the breeze? Fans in outdoor areas like your porch or patio help keep mosquitoes away. Citronella candles or coils also add an extra layer of defense, especially in small outdoor spaces. Don’t Forget Your Pets Mosquitoes can transmit heartworms to your beloved pets, too. Keep them safe by using veterinarian-recommended preventive medications and limiting their outdoor time during mosquito peak hours. Community Effort Counts Joining or supporting local mosquito control programs can make a huge difference. Be aware of spraying schedules and follow any recommendations from your local public health department.By following these easy, practical tips, you can enjoy the outdoors without constantly worrying about mosquitoes ruining the fun. Staying informed and proactive doesn’t just keep your family safe—it lets you reclaim your backyard from these pesky intruders.
If you feel things have gone out of control, it is advised to contact pest control professionals. Our team can provide a customized approach to protect your home effectively.
Visit our Species, Control, and DIY Guide sections for additional resources on mosquitoes and ways to tackle a mosquitoes infestation.