Why Mosquito-Borne Illnesses Are on the Rise — and How to Protect Yourself

In many northern or temperate regions like Johnstown, PA, mosquitoes have long been seen as a minor summer annoyance. But recent years have brought a shift: mosquito-borne illnesses are on the rise, even in areas with historically shorter seasons. Warmer weather, increased rainfall, and the migration of mosquito species are creating a new reality for public health.

Understanding what's behind the trend and how to protect your family is critical during the warmer months.

What's Behind the Increase?

1. Longer, Warmer Seasons
Due to shifting climate patterns, regions like Johnstown, PA are experiencing longer warm seasons. This creates more time for mosquitoes to hatch, feed, and transmit disease.

2. Increased Rain and Standing Water
More frequent storms and heavier rains contribute to standing water accumulation, especially in urban areas. Anything from clogged gutters to toys left in the yard can become a mosquito nursery.

3. Expanding Mosquito Habitats
Southern mosquito species like Aedes aegyptiare migrating north. These mosquitoes thrive in urban and suburban environments and are capable of transmitting dengue, Zika, and chikungunya.

4. Travel-Related Transmission
People traveling to tropical regions may unknowingly bring mosquito-borne viruses home. Local mosquitoes can then bite infected individuals and pass the virus to others.

Mosquito-Borne Illnesses Seen in Johnstown, PA

• West Nile Virus: The most common in northern states. Severe infections may lead to encephalitis or meningitis.
• Eastern Equine Encephalitis: Rare but very serious. Found near wetlands and wooded areas.
• La Crosse Encephalitis: Found in wooded, rural areas and often affects children.
• Zikaand Dengue: Rare locally but possible due to returning travelers.

How to Protect Yourself

• Use Insect Repellent: Look for EPA-registered repellentsand apply before outdoor activities.
• Remove Standing Water: Walk your yard weekly to dump anything that collects rain - flowerpots, tarps, even bottle caps.
• Dress Smart: Long sleeves and pants are best when outdoors during peak mosquito hours.
• Screen Your Home: Keep doors and windows sealed and screens in good repair.
• Be Travel-Smart: Use extra caution when visiting tropical areas. Pack repellent and check CDC travel advisories.

Who Is at Greater Risk?

Certain groups are more likely to experience complications:

• Infants and children
• Older adults
• Pregnant individuals
• People with underlying conditions or compromised immunity

Watch for Symptoms

Common signs of mosquito-borne illness include fever, rash, headache, nausea, joint pain, or fatigue. Seek medical attention if symptoms appear within days of a mosquito bite.

Stay Safe with Conemaugh Health System

The team at Conemaugh Health System in Johnstown, PA is here to support you with prevention tips, care when you need it, and up-to-date local information. We're committed to keeping our community safe and healthy - every season.

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