Can You Get RSV Twice in the Same Season?

Respiratory syncytial virus (RSV) is a common respiratory virus that infects people of all ages. As more families ask, “can you get RSV twice in the same season?” it’s important to understand how immunity works, why reinfections happen, and what you can do to stay healthy. This guide is based on credible sources like the Centers for Disease Control and Prevention (CDC) and peer-reviewed studies, and it uses clear, common language to give you practical answers.

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Understanding RSV and Immunity

RSV causes cold-like symptoms, but in infants, older adults, and people with weakened immune systems, it can lead to serious lung infections. After you recover from an RSV infection, your body produces antibodies. However, these antibodies:

• Tend to wane over time, sometimes within months
• Offer partial protection rather than complete immunity
• Vary in strength from person to person

Because of this, can you get RSV twice in the same season? Yes. Reinfections are common, especially during peak RSV months (usually fall through spring).

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Why Reinfections Occur

Several factors explain why you might catch RSV more than once in a single season:

1. Multiple RSV Strains

   • There are two main RSV subtypes: A and B.
   • Immunity to one subtype doesn’t guarantee protection against the other.

2. Waning Immunity

   • Antibody levels decline within weeks to months post-infection.
   • Lower antibody levels increase vulnerability to reinfection.

3. Viral Evolution

   • RSV undergoes small genetic changes over time.
   • These shifts can help the virus evade prior immunity.

4. Host Factors

   • Infants, older adults, and immunocompromised people often have weaker or shorter-lasting immune responses.
   • Underlying health conditions (e.g., chronic lung disease) can heighten risk.

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Symptoms: First Infection vs. Reinfection

RSV symptoms can be similar each time, but reinfections often run a milder course in otherwise healthy individuals. Common symptoms include:

• Runny or stuffy nose
• Cough and sneezing
• Low-grade fever
• Decreased appetite
• Mild headache or muscle aches

Infants and older adults may experience:

• Wheezing or rapid breathing
• Irritability (in babies)
• Poor feeding or reduced wet diapers
• High fever
• Signs of dehydration

Even if reinfection feels “just like a cold,” stay alert for warning signs, especially if you or a loved one is young, elderly, or has chronic health issues.

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Prevention: Reducing Your Risk

While you can’t entirely eliminate the risk of RSV, these steps help lower your chance of reinfection:

• Hand Hygiene

  • Wash hands frequently with soap and water for at least 20 seconds.
  • Use alcohol-based hand sanitizer when soap isn’t available.

• Avoid Close Contact

  • Steer clear of crowds during RSV season, especially in poorly ventilated spaces.
  • Keep infants and high-risk individuals away from people showing cold symptoms.

• Clean and Disinfect

  • Wipe down frequently touched surfaces (doorknobs, phones, toys) daily.
  • Launder shared items (towels, pillows) regularly.

• Respiratory Etiquette

  • Cover coughs and sneezes with a tissue or your elbow.
  • Dispose of tissues immediately and wash hands afterward.

• Mask Wearing

  • Consider masks in busy indoor settings if RSV is circulating heavily in your community.

• Vaccines and Prophylaxis

  • RSV vaccines are now available for older adults and pregnant people (check eligibility).
  • Passive immunization (monoclonal antibodies) may be recommended for certain high-risk infants.

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Who’s Most at Risk

Reinfections can affect anyone, but these groups face the greatest danger:

• Infants under 6 months
• Premature babies
• Children with congenital heart or lung disease
• Adults over 65 years
• Individuals with weakened immune systems

If you fall into one of these categories, extra precautions—like avoiding public gatherings and routine cleaning—are vital during RSV season.

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When to Seek Medical Help

Even if an RSV reinfection seems mild at first, watch for signs that may need prompt medical care:

• Fast or labored breathing
• Lips or fingernails turning blue
• High fever that won’t come down
• Signs of dehydration (dry mouth, no tears when crying, fewer than usual wet diapers)
• Lethargy or unresponsiveness

These symptoms can signal a serious RSV complication, such as bronchiolitis or pneumonia. Never hesitate to speak to a doctor if you notice anything concerning.

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Check Your Symptoms Online

If you or a loved one develops RSV-like symptoms, consider a free, online symptom check, using the doctor approved Ubie Symptom Checker. It’s an easy first step to understand your symptoms and decide whether to see a healthcare provider.

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Take-Home Points

• Can you get RSV twice in the same season? Yes. Due to incomplete and waning immunity, reinfections are common, particularly when different RSV subtypes circulate.
• Symptoms of reinfection often mimic a cold but can be severe in infants, older adults, and people with chronic health conditions.
• Prevent RSV reinfections through good hygiene, cleaning, masks, and vaccines or prophylaxis if eligible.
• High-risk groups should be extra vigilant and seek medical advice early.
• Use the Ubie Symptom Checker for a quick, doctor-approved assessment of your symptoms.
• Always speak to a doctor if you or a family member experiences severe symptoms or any sign of breathing difficulty.

By understanding why RSV reinfections happen and taking sensible precautions, you can reduce your risk of “catching RSV twice” and keep your family safer throughout the season.