Current Health Alerts & Seasonal Advisories for Nepal
Standing advisories our physicians maintain for travelers in Kathmandu and the trekking regions — dengue season, altitude illness windows, winter air quality, and year-round rabies/water risks. This page is reviewed each season; check dates below.
Dengue Fever Surge in Kathmandu Valley
Aedes mosquitoes breed aggressively during monsoon. Use 20–30% DEET by day (dengue mosquitoes bite in daylight), sleep under nets, and take Paracetamol only for fever — never Ibuprofen/Aspirin until Dengue is excluded. A Dengue NS1 panel takes ~2 hours at our lab.
Read the Dengue guide →Altitude Illness Season — AMS, HAPE & HACE
Lukla (2,860m) and Namche (3,440m) are where AMS most often begins on the EBC route. Ascend ≤500m sleeping altitude per day above 3,000m, plan rest days, and get a pre-trek consultation with genuine Diamox before flying to the mountains.
Read the Altitude sickness guide →Kathmandu Valley Air Quality (AQI) & Respiratory Flare-Ups
Winter inversions trap valley smog — some of South Asia's worst seasonal AQI. Asthmatics should carry rescue inhalers, mask up on high-AQI days, and plan short Kathmandu stays. Post-trek "Khumbu cough" also peaks in dry cold air.
Read the Respiratory guide →Rabies Exposure — Stray Dogs & Temple Monkeys
Swayambhunath (Monkey Temple), Pashupatinath, and streets across Kathmandu carry ongoing rabies risk. Never feed or touch stray animals. Any bite/scratch = 15-min soap wash + Day-0 vaccine within hours. Rabies is ~100% fatal once symptomatic — and ~100% preventable with timely PEP.
Read the Rabies PEP protocol →Waterborne GI Illness — Tap Water Is Not Safe to Drink
Kathmandu tap water is untreated at point of use. Drink bottled, boiled, or purified water only; skip ice, unpeeled raw salads, and juices made with tap water. Persistent diarrhea >3 days with sulfur burps usually means Giardia — a 60-min stool test confirms it.
Read the Food & water safety guide →Holiday Closures — Pharmacies & Government OPDs Shut
During major Nepali festivals most government outpatient departments and many pharmacies close for days. Thamel Clinic remains open on adjusted holiday hours (09:00–19:00 NPT) — stock up on regular medications beforehand if you are trekking.
Read the Holiday hours & contact →The Current Risk Picture
Health risks in Nepal are not static — the dengue season that peaks in September, the pollution that worsens in winter, the outbreak that emerges unexpectedly. The alert page surfaces the current conditions that affect traveler health — the information that should inform whether you go, when you go, and what precautions you take.
Alert categories we monitor
- Disease outbreaks — dengue, respiratory illness, waterborne disease
- Seasonal risks — monsoon diseases, winter pollution, altitude season
- Requirement changes — vaccination rules, entry health requirements
- Environmental alerts — air quality, water safety, foodborne illness
- Security-adjacent health — crowd risks, infrastructure disruptions
The Information Hierarchy
The alert sources that matter: WHO/CDC for disease surveillance, Nepal government notices for official requirements, our clinic for traveler-relevant synthesis, and your embassy for citizen-specific advisories. The scattered information converges here — the alerts that affect travelers, filtered from the noise.
The Current
Current health alerts — the outbreak (the dengue, the typhoid), the weather event, the travel advisory that is current.
The Source
Health alert source — the WHO, the CDC, the Nepal Ministry of Health that provides the authoritative. For the alert, the reliable source that is checked.
The Alert Value
Health alert — the free (the advisory that is provided). For the current situation, the check that is done.
The Consultation
Alert consultation — the ~ $10-25 (the concern that is assessed). For the outbreak concern, the evaluation that is available.
The Alert Cost
Health-alert — the free (the published that is monitored). For the current-risk, the read that is the update.
The Action Value
Alert action — the vaccine/consult (the ~$40 that the flagged may warrant). For the alerted, the acted-that is the response.
What health alerts currently affect Nepal travel?
Seasonal alerts: dengue during monsoon (June–September), respiratory issues during Kathmandu's winter pollution, altitude illness during trekking season peaks. Specific outbreak alerts are posted as they emerge — check this page for current notifications before travel.
How do I know if there is a disease outbreak?
We monitor and post health alerts for significant outbreaks — dengue clusters, waterborne illness events, seasonal disease patterns. Additionally, check WHO and CDC travel notices for Nepal, and your government's travel health advisories. The alert page consolidates the traveler-relevant information.
What is the current dengue situation?
Dengue is endemic in Nepal with monsoon-season peaks — outbreaks occur annually during June–October. Current activity varies by year and location; check the alerts for the latest. Prevention is mosquito avoidance; there is no vaccine for travelers.
Are there vaccination requirements that change?
Entry requirements and recommendations evolve — COVID policies have changed repeatedly, routine requirements may update, and outbreak-specific recommendations (yellow fever certificates, meningitis requirements) can shift. Check current requirements before travel; the rules that applied last year may not apply now.
How do I get real-time updates?
Check this page for posted alerts, follow our WhatsApp broadcasts for urgent updates (contact us to be added), monitor your embassy's Nepal advisories, and consult your government's travel health notices. The information sources that matter are the ones that update.
