How to Stay Illness-Free During Summer Travel

As summer travel season heats up, a new Omicron subvariant, NB.1.8.1, has been making headlines.

Though it’s the dominant strain in China and some surrounding regions, early data shows it remains uncommon in the U.S. Still, it’s a good reminder that staying healthy while traveling requires a few thoughtful strategies.

What You Should Know About NB.1.8.1

This emerging strain is part of the Omicron lineage, but it hasn’t been classified as a new variant in the U.S., since it lacks the number of mutations required to meet that definition. So far, most symptoms have been mild and have resolved within 2 to 3 days.

One standout symptom is a very sore throat, often described as feeling like “razor blade irritation.” While not more severe than previous strains, it may be slightly more transmissible and could lead to temporary immune suppression, potentially triggering dormant viruses such as shingles (herpes zoster) or Epstein-Barr virus (mononucleosis).

Simple Ways to Stay Well While Traveling

Whether you’re staying domestic or going abroad, here are evidence-informed steps to help protect yourself and your immune system this summer:

• Take Quercetin – 500 mg Twice Daily
  • Quercetin is a natural antioxidant and anti-inflammatory that may block viruses from attaching to ACE2 receptors, where this strain is thought to enter cells. Taking it daily while traveling may help reduce susceptibility.
• Boost Vitamin D3 – 5,000 IU While Traveling
  • Vitamin D3 is essential for immune function. Low levels are associated with a higher risk of infection and worse outcomes. Taking 5,000 IU per day while traveling can help strengthen your defenses and reduce inflammation.
• Use Nasal Saline Spray – Twice Daily
  • A simple nasal saline spray can help prevent viruses from attaching to your nasal passages, a key site of infection. It may also break down viral particles. Use it morning and night while traveling for added protection.
• Pack NAC (N-Acetyl Cysteine) – 600 mg Twice Daily
  • NAC supports respiratory health, helps break down mucus, and may bind to the virus’s spike protein to limit infection. It’s a great item to keep in your travel wellness kit.
• Add Vitamin C and Zinc
  • Daily immune support staples:
    • Vitamin C – 2,000 mg/day
    • Zinc – 15 mg/day
      These can support your body’s defense systems, especially when exposed to new environments or pathogens.
• Keep Ibuprofen On Hand for Sore Throats

If you experience the hallmark symptom of a sore throat, Ibuprofen (400–600 mg twice daily) can help reduce discomfort. You might also consider Chloraseptic spray for local relief.

Don’t Forget the Basics

The best defense is a strong immune system. Stick to the essentials:

• Wash your hands frequently
• Get plenty of sleep
• Eat whole, colorful fruits and vegetables
• Stay hydrated

Travel can disrupt healthy routines—try to maintain yours to stay resilient and illness-free.

Safe Travels from Thrive

With just a few extra steps, you can enjoy your vacation while minimizing your risk of getting sick. Be proactive, pack smart, and take care of your immune system so you can fully enjoy your adventures.

Happy and healthy travels!