What is HMPV and how dangerous is it?

HMPV (Human Metapneumovirus) is a respiratory virus that typically causes mild cold-like symptoms. However, it can lead to bronchiolitis, pneumonia, and severe respiratory distress in high-risk groups including infants, elderly adults, and immunocompromised individuals. During the 2026 surge, detection rates increased over 10-fold compared to 2025.

How does HMPV spread?

HMPV spreads through respiratory droplets when infected people cough or sneeze, direct contact with infected individuals, and touching contaminated surfaces. The virus can survive on surfaces for several hours and is most contagious during the first few days of illness.

What are the symptoms of HMPV infection?

Common symptoms include cough, fever, nasal congestion, shortness of breath, wheezing, and sore throat. In severe cases, particularly in young children and elderly adults, HMPV can cause bronchiolitis, pneumonia, and respiratory failure requiring hospitalization.

Is there a vaccine for HMPV?

Currently, there is no approved vaccine for HMPV. Prevention focuses on good hand hygiene, avoiding close contact with sick individuals, disinfecting frequently touched surfaces, and staying home when ill. Several vaccines are in clinical development as of 2026.

Why did HMPV cases surge in 2026?

Multiple factors contributed to the 2026 HMPV surge, including reduced population immunity due to pandemic-era isolation, viral evolution, and seasonal patterns. Detection rates increased from 0.42% in September 2025 to 5.37% by March 2026, representing over a 10-fold increase.

Where are HMPV outbreaks occurring?

HMPV outbreaks have been reported across 177 countries. Search interest is particularly high in Australia, Thailand, the United Kingdom, and the United States. Check the live outbreak data above for current HMPV activity in specific regions.

HMPV (Human Metapneumovirus)

HMPV (Human Metapneumovirus) is a respiratory virus that causes cold-like symptoms and can lead to severe respiratory illness. Cases surged globally in 2026, with detection rates increasing from 0.42% to 5.37% in the United States.

Countries Affected

No data

Recent Cases (30d)

Active Outbreaks

N/A

Last Updated

Track in App Track in App View Active Outbreaks

What is HMPV (Human Metapneumovirus)?

Human Metapneumovirus (HMPV) is a respiratory virus discovered in 2001 that causes upper and lower respiratory tract infections. While most people experience mild cold-like symptoms, HMPV can cause severe respiratory illness in young children, older adults, and immunocompromised individuals. The virus follows seasonal patterns similar to RSV and influenza, with increased activity in late winter and spring months.

Symptoms

Cough
Fever
Nasal congestion and runny nose
Shortness of breath or wheezing
Sore throat
Fatigue
Difficulty breathing (severe cases)

Transmission

HMPV spreads through respiratory droplets, direct contact with infected individuals, and contaminated surfaces. The virus is highly contagious and can spread before symptoms appear.

Contagious Period: Most contagious during first 3-7 days of illness

Prevention

Frequent hand washing with soap and water
Avoiding close contact with sick individuals
Covering coughs and sneezes
Disinfecting frequently touched surfaces
Staying home when sick
Wearing masks in crowded indoor settings during outbreaks

Active Outbreaks & Recent Cases

Real-time intelligence from global health monitoring and AI-powered surveillance

Data sources: BEACON, ProMED, WHO, CDC, and 50+ national health agencies

No Active Outbreaks Detected

Our AI-powered surveillance hasn't detected significant HMPV (Human Metapneumovirus) activity in the past 30 days.

Real-time monitoring continues 24/7 across BEACON, ProMED, WHO, CDC, and 50+ global health agencies

What This Means

Currently, HMPV (Human Metapneumovirus) case counts are within baseline expectations globally. However, diseases can emerge rapidly, which is why continuous monitoring is critical.

Stay Prepared

Download the Virus Watcher app to get instant alerts if HMPV (Human Metapneumovirus) activity increases in your region or travel destinations.

Prevention Remains Important

Even without active outbreaks, understanding HMPV (Human Metapneumovirus) prevention helps protect you and your community:

Frequent hand washing with soap and water
Avoiding close contact with sick individuals
Covering coughs and sneezes
Disinfecting frequently touched surfaces
Staying home when sick
Wearing masks in crowded indoor settings during outbreaks

Get Real-Time Alerts on Your Phone

Track HMPV (Human Metapneumovirus) and 200+ other diseases with personalized alerts

Expert Resources & References

Trusted information from leading health organizations

CDC

Official guidance from the U.S. Centers for Disease Control and Prevention

View CDC Resources →

WHO

Global disease surveillance and guidelines from the World Health Organization

View WHO Resources →

Research

Latest peer-reviewed research and clinical studies

View Research →

Medically Reviewed Content

Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.

Last reviewed: 2026-04-19

Frequently Asked Questions

Common questions about HMPV (Human Metapneumovirus) answered by our epidemiology team

Related Diseases

Track other diseases with similar symptoms or transmission patterns

covid 19 acute bronchiolitis influenza pertussis pneumonia

Stay Ahead of HMPV (Human Metapneumovirus) Outbreaks

Get real-time alerts and intelligence on HMPV (Human Metapneumovirus) and 200+ other diseases. Used by healthcare systems, EMS, schools, and travelers worldwide.

Download App Download App Enterprise Solutions