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The Latest Breaking News from West Nile

Phoenix Leads the Nation in West Nile Virus Deaths as 2026 Season Becomes Worst in Over Two Decades

Maricopa County reports 29 West Nile cases and 4 deaths — the worst early-season start in over 20 years. CDC confirms 48 cases in 23 states. What Phoenix residents need to know now.

Medical Daily

West Nile Season Opens at a 22-Year High with 38 of 48 Cases Already Involving Brain Disease

CDC confirms 48 West Nile cases by June 30, 2026 — 38 involving brain disease. The earliest severe start in 22 years, with peak season still ahead. What to know now.

Medical Daily

Wisconsin Reports Its First West Nile Virus Activity as 23 States Enter a Record Early Season

Wisconsin confirmed its first West Nile detections July 14 as 23 states report the worst early-season activity since 2004. Here's who is most at risk.

Medical Daily

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West Nile Virus Is Entering Peak Transmission Season, and 2026 Is Already the Worst in Over 20 Years

West Nile virus 2026 enters peak August-September window. CDC confirmed 48 cases by June 30, nearly 5x the historical average. Maricopa County: 29 cases, 5 deaths. No vaccine exists.

Medical Daily

CDC Says West Nile Virus Is Off to Its Earliest Start Since 2004 as Peak Season Approaches

CDC confirms 48 West Nile cases by June 30, 2026 — nearly 5x the historical average. Maricopa County leads with 29 cases and 5 deaths. Peak season is still ahead.

Medical Daily

West Nile Virus Season Hits a 22-Year High as CDC Urges Mosquito Precautions in 23 States

West Nile virus hits 22-year early-season high with 48 cases in 23 states as of June 30. CDC urges DEET use and mosquito control now.

Medical Daily

CDC urges Americans to prevent mosquito bites as West Nile cases surge

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West Nile Virus Detected in Nashville Mosquitoes for the First Time in 2026

Nashville Metro Public Health confirmed the first West Nile virus detection of 2026 in North Nashville on July 1. Here's the official guidance and what Davidson County residents should do.

Medical Daily

Four People Are Dead from West Nile Virus in Maricopa County: Here Is What Phoenix Residents Need to Do Tonight

4 people dead, 29 cases confirmed in Maricopa County — the worst early West Nile start in 20+ years. Phoenix residents should apply DEET repellent before tonight's outdoor events.

Medical Daily

West Nile cases hit highest total in decades as experts warn about mosquitos spreading the virus across the US

The US has seen the highest number of cases by this point in the year since 2004

The Independent UK

CDC Issues Fourth of July Warning as West Nile Virus Spreads to 23 States

CDC confirms 48 West Nile cases across 23 states — the worst early start in 20+ years. Here's what families need to know before July 4 celebrations.

Medical Daily

CDC June 2026 Health Outlook: COVID Summer Surge Risk, West Nile Early Season, and Salmonella Moringa Alert

CDC's June 5, 2026 respiratory data shows COVID very low nationally, but a summer surge is possible in South and West. West Nile positive pools confirmed in TX and LA. Salmonella-moringa outbreak expanding to 119 cases.

Medical Daily

West Nile Virus Detected Months Early in San Antonio and Dallas Metro as Mosquito Season Heats Up

West Nile virus has been detected months ahead of schedule in San Antonio and the Dallas metro area, with positive mosquito pools confirmed in New Orleans as well.

Medical Daily

What are the risks of contracting West Nile virus from a mosquito in Canada?

As a dead crow tested positive for West Nile virus in Ontario this week, Canadians may be wondering: just how prevalent are such mosquito-borne viruses in Canada, and how risky is the summer camping trip?

The Conversation

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The Economic Times

What is the West Nile virus discovered in California? Symptoms, treatment, vaccines and all details explained

West Nile virus has been detected in California after two dead crows tested positive in San Diego County, prompting officials to urge mosquito-bite prevention measures. The virus primarily circulates among birds and spreads to humans through infected mosquito bites. Severe cases can affect the nervous system and may be fatal.…

Medical Daily

Houston Heat Season Begins with 329% Surge in ER Visits as Officials Warn of Worse Ahead

HOUSTON — As the first days of meteorological summer descend on Southeast Texas, the Houston Health Department (HHD) and Harris County Public Health are bracing for what is shaping up to be another potentially lethal heat season.

Medical Daily

Houston on High Alert as Texas Confirms First West Nile Neuroinvasive Case of 2026 — and Mosquito Season Is Just Getting Started

Texas health officials are sounding an early alarm this mosquito season. The Texas Department of State Health Services (DSHS) has confirmed the state's first human case of West Nile virus for 2026 — and it's a severe one.

The Conversation

First evidence in the UK of breeding aegypti mosquito – the main spreader of dengue, chikungunya and Zika

Scientists have found eggs of the Aedes aegypti mosquito in the UK for the first time – a mosquito that spreads many tropical diseases.

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The Independent UK

West Nile virus cases running higher than normal, prompting health warnings

Health officials say West Nile virus infections are intense this year, with 40% more cases than usual

Euronews

EU health authorities warn that mosquito-borne illnesses are at record highs

Health officials said the longer season for mosquito-borne illnesses is becoming a "new normal" in Europe.

Euronews

West Nile virus, chikungunya, dengue: Tracking mosquito-borne illnesses across Europe

Hundreds of cases of mosquito-borne infections have been reported so far this summer.

Euronews

What do we know about the West Nile virus spreading in Europe?

Several people have died after being infected with the mosquito-borne virus this summer.

Euronews

Ten deaths reported from West Nile virus in Italy since the start of the year

A 93-year-old woman died in the Italian region of Lazio from the West Nile virus. This is the tenth death in the country. In Europe, infection cases were registered in five countries.

The Independent UK

What is West Nile virus? Symptoms and advice after deaths in Italy

There have been 32 confirmed cases of the virus in Italy so far this year

Euronews

Italy reports 32 cases, including 2 deaths, from West Nile virus amid spread of mosquito-borne illness

Most cases have been identified in the province of Latina, about 100 kilometres south of Rome.

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