Asia-Pacific Regional Summary

Report Date: February 9, 2026

Latest Data Update: Dashboard updated with February 2026 data from media reports, WHO, and official regional health authorities. Data reflects cumulative 2025 totals as reported in media and early 2026 surveillance indicators.

DENGUE, CHIKUNGUNYA, AND ZIKA IN ASIA-PACIFIC

Global Context for Asia

Asia-Pacific remains a high-risk region for mosquito-borne diseases as of early 2026. Major outbreaks of Chikungunya in the Western Indian Ocean (Seychelles) and China's Guangdong province, along with significant Dengue burdens in Vietnam and the Philippines, characterize the current epidemiological landscape.

Global 2026 Outlook (as of February):
• Dengue: Over 1.0 million cases reported across the 14 major monitored countries in 2025; early 2026 travel alerts active for several nations.
• Chikungunya: Significant outbreaks in China (>16,000 cases), India, and Sri Lanka in 2025.
• Zika: Surveillance remains active; minimal activity reported.
• CDC Travel Advisories: Level 2 notices maintained for several countries in the region.

BANGLADESH

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 102,562 cases reported (as of December 28, 2025)
• Status: High transmission established; travel alerts active in early 2026.
CHIKUNGUNYA:
• Suspected/Confirmed Cases 2025: 732 cases (reported media total)
• CDC Travel Health Notice: Level 2 (as of December 2025)
• Status: Active surveillance ongoing.
ZIKA:
• Status: Under surveillance.

Combined 2025 Burden (Bangladesh): 103,294 total cases

Public Health Response: Enhanced surveillance systems activated, vector control intensified in major urban centers.

Data Verification Sources:
  • WHO South-East Asia Region (SEARO)
  • Bangladesh Institute of Epidemiology, Disease Control and Research (IEDCR)
  • Dhaka City Corporation Health Office
  • CDC Health Alert - Bangladesh (Level 2 Travel Advisory, December 2025)
  • IANS, TBS News, Ministry of Health & Family Welfare

CAMBODIA

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 63,016 cases reported (media report cumulative 2025 total)
• Deaths: 79 dengue-related deaths
• Status: Active surveillance ongoing; 232% increase compared to 2024.
CHIKUNGUNYA & ZIKA:
• Status: Under surveillance.

Combined 2025 Burden (Cambodia): 63,016+ total cases

Data Verification Sources:
  • WHO Western Pacific Region Office (WPRO)
  • Cambodia Ministry of Health
  • Outbreak News Today (January 2026 Report)

CHINA (Guangdong Province)

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 14,000 confirmed cases (media-reported cumulative for Guangdong)
• Status: Seasonal monitoring; cases reported in major cities including Guangzhou and Foshan.
CHIKUNGUNYA - PERSISTENT OUTBREAK:
• Total Confirmed Cases 2025: 16,452 cases
• Status: Largest outbreak in China's history; largest numbers reported in Foshan.
ZIKA:
• Status: No cases reported in 2025

Combined 2025 Burden (China/Guangdong): 30,452 cases (14,000 dengue; 16,452 chikungunya; no zika)

Public Health Response: Intensive mosquito control efforts active, ongoing epidemiological investigation, enhanced surveillance in neighboring provinces.

Data Verification Sources:
  • China National Health Commission (NHC) - Guangdong Province
  • Guangdong Center for Disease Control and Prevention (CDC Guangdong)
  • CDC Travel Advisory - China/Guangdong (Level 2, December 5, 2025)
  • WHO Western Pacific Region Office
  • Science Daily, China Daily, ScienceDirect, Outbreak News Today

INDIA

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 91,015 confirmed cases (media-reported total for 2025)
• Status: Cases reported across multiple states; significant year-end surge noted.
CHIKUNGUNYA - MAJOR OUTBREAK:
• Total Cases 2025: 34,876 suspected/confirmed cases
• Status: Ongoing outbreak with localized surges; India remains the major chikungunya burden in the SEARO region.
ZIKA:
• Status: Under surveillance; cases monitored in several states.

Combined 2025 Burden (India): 125,891+ total cases

Data Verification Sources:
  • WHO South-East Asia Region (SEARO)
  • India's National Centre for Vector Borne Disease Control (NCVBDC)
  • Indian Council of Medical Research (ICMR)
  • NDTV Health (December 2025 Report), Vax-Before-Travel

INDONESIA

Last Updated: February 2026

DENGUE:
• 2025 Total: 122,110 cases reported (as of September 2025)
• Status: High transmission continues across multiple provinces; early 2026 indicators remain elevated.
CHIKUNGUNYA:
• Total Cases 2025: 20,000 cases (suspected/confirmed nationwide)
• Status: Major resurgence after years of lower activity.
ZIKA:
• Status: Under surveillance.

Combined 2025 Burden (Indonesia): 142,110 total cases

Strategic Initiative: Indonesia targets zero dengue deaths by 2030 through comprehensive health system transformation. Currently implements integrated vector management across provinces.

Data Verification Sources:
  • Indonesia Ministry of Health (Kementerian Kesehatan)
  • WHO South-East Asia Region (SEARO)
  • Indonesian CDC (Pusat Pengendalian dan Prevention)
  • The Jakarta Post, Regional Health Ministry Reports

LAOS

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 11,261 dengue cases reported (media report 2025 total)
• Deaths: 1 death
• Status: Significant activity in 2025; surveillance maintained in early 2026.
CHIKUNGUNYA & ZIKA:
• Status: Under surveillance.

Combined 2025 Burden (Laos): 11,261+ total cases

Data Verification Sources:
  • WHO South-East Asia Region (SEARO)
  • Lao Ministry of Health
  • National Center for Laboratory and Epidemiology (NCLE), Laos

MALDIVES

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 2,500 cases (reported media cumulative)
• Status: Continued transmission monitored.
CHIKUNGUNYA:
• Total Cases 2025: 500 cases (confirmed/suspected)
ZIKA:
• Status: No reports

Combined 2025 Burden (Maldives): 3,000 total cases

Data Verification Sources:
  • WHO South-East Asia Region (SEARO)
  • Maldives Ministry of Health
  • National Health Laboratory, Maldives

MALAYSIA

Last Updated: February 2026

DENGUE:
• 2025 Total: 48,766 cases reported (as of November 2025 per media reports).
• Trend: Significant decrease compared to 2024 (~58.6% drop as reported by Health Minister).
CHIKUNGUNYA:
• Status: Sporadic cases only.
ZIKA:
• Status: Not reported

Combined 2025 Burden (Malaysia): 48,766 cases through November 2025.

Data Verification Sources:
  • WHO Western Pacific Region (WPRO) - Dec 2025 report
  • Malaysia Ministry of Health (Kementerian Kesihatan)
  • The Star, Healthcare Asia (Media Reports)

NEPAL

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 6,967 cases reported (media report cumulative 2025 total)
• Deaths: 6 deaths reported
• Status: Widespread virus presence; surveillance continues in early 2026.
CHIKUNGUNYA & ZIKA:
• Status: No confirmed outbreaks in 2025.

Combined 2025 Burden (Nepal): 6,967+ total cases

Data Verification Sources:
  • Nepal Ministry of Health & Population
  • Nepal News (January 2026 Report)
  • Kathmandu Post

PHILIPPINES

Last Updated: February 2026

DENGUE - SIGNIFICANT BURDEN:
• Total Cases 2025: 123,431 cases reported (cumulative total as of August 20, 2025)
• Deaths: 437 dengue-related deaths reported as of June 2025
• Trend: Widespread surge across multiple regions; travel notices active in early 2026.
CHIKUNGUNYA:
• Status: Emerging threat; increased monitoring alongside dengue epidemic.
ZIKA:
• Status: No major reports in early 2026.

Combined 2025 Burden (Philippines): 123,431 total cases (as of August 2025)

Public Health Response: Department of Health (DOH) coordinating enhanced surveillance, vector control programs, and hospital preparedness across all regions.

Data Verification Sources:
  • Department of Health (DOH), Philippines
  • WHO South-East Asia Region (SEARO)
  • Quezon City Health Department
  • CDC Disease Intelligence
  • Rappler, Philstar.com, GMA News, Local Media Reports

SINGAPORE

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 4,000+ cases reported (official NEA full-year data)
• 2026 Year-to-Date: 149 cases (as of February 6, 2026)
• Status: Surveillance active; clusters monitored in early February 2026.
• Dominant Serotype: DENV-2 remains prevalent.
CHIKUNGUNYA:
• Status: Monitoring continues for sporadic cases; no active clusters.
ZIKA:
• Status: Surveillance active; no active clusters or areas with likely transmission.

Combined 2025 Burden (Singapore): 4,000+ total cases

Public Health Strength: Singapore maintains robust surveillance systems and rapid response capabilities. Project Wolbachia-infected mosquitoes continue demonstrating efficacy in dengue suppression.

Data Verification Sources:
  • Singapore Ministry of Health (MOH)
  • National Environment Agency (NEA) - Dengue Cases (Jan 2026 Report)
  • The Straits Times

SRI LANKA

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 71,675 cases reported (as of November 2025 per media reports)
• Geographic Concentration: Western Province accounting for ~45% of cases.
• Status: Persistent transmission monitored in early 2026.
CHIKUNGUNYA - MAJOR OUTBREAK:
• Status: LARGEST OUTBREAK IN 20 YEARS; continued impact through 2025.
• Viral Lineage: Indian Ocean Lineage (IOL) with enhanced transmission efficiency.
ZIKA:
• Status: No cases reported in 2025.

Combined 2025 Burden (Sri Lanka): 71,675 total cases (as of November 2025)

Data Verification Sources:
  • Sri Lanka Ministry of Health / Epidemiology Unit
  • WHO South-East Asia Region (SEARO)
  • English.news.cn (Xinhua News), Newswire.lk

THAILAND

Last Updated: February 2026

DENGUE:
• Total Cases 2025: 51,795 dengue cases reported (cumulative as of October 31, 2025)
• Deaths: 120 dengue-related deaths reported in 2025
• Status: Ongoing surveillance; indicators monitored for early 2026 transmission.
CHIKUNGUNYA:
• Total Cases 2025: 1,128 cases (baseline)
• Status: Emerging threat monitored alongside dengue.
ZIKA:
• Status: Persistent circulation; 46 provinces affected in 2025.

Combined 2025 Burden (Thailand): 52,923 total cases (as of October 2025)

Public Health Achievement: Thailand demonstrates strong surveillance capabilities. Vector control measures ongoing across all three arboviral diseases.

Data Verification Sources:
  • Thailand Ministry of Public Health (MOPH)
  • WHO South-East Asia Region (SEARO) - October 2025 Bulletin
  • Department of Disease Control (DDC), Thailand

VIETNAM

Last Updated: February 2026

DENGUE - SIGNIFICANT SURGE:
• 2025 Cumulative Total: 184,903 cases with 43 deaths (media report 2025 total).
• Ho Chi Minh City: Recent spike reported in early 2026.
• Trend: Unpredictable and high transmission patterns observed.
CHIKUNGUNYA:
• Status: Under surveillance.
ZIKA:
• Status: Surveillance active.

Combined 2025 Burden (Vietnam): 184,903+ total cases

Public Health Response: Vietnam Ministry of Health coordinating prevention campaigns, vaccination efforts, and outbreak management. WHO SEARO providing technical support for response.

Data Verification Sources:
  • Vietnam Ministry of Health (Bộ Y tế)
  • WHO South-East Asia Region (SEARO) - Primary Source
  • Ho Chi Minh City Center for Disease Control (HCDC)
  • Vietnam News Agency (VNA), Vietnam Ministry of Health Reports
  • CDC Global Disease Intelligence

ASIA-PACIFIC COUNTRY DISEASE BURDEN SUMMARY (2025)

Country Dengue Cases Chikungunya Cases Zika Cases TOTAL CASES Latest Data
Bangladesh 102,562 732 — 103,294 Feb 2026
Cambodia 63,016 — — 63,016 Feb 2026
China (Guangdong) 14,000 16,452 0 30,452 Feb 2026
India 91,015 34,876 — 125,891 Feb 2026
Indonesia 122,110 20,000 — 142,110 Feb 2026
Laos 11,261 — — 11,261 Feb 2026
Maldives 2,500 500 — 3,000 Feb 2026
Malaysia 48,766 Sporadic — 48,766 Feb 2026
Nepal 6,967 — — 6,967 Feb 2026
Philippines 123,431 — — 123,431 Feb 2026
Singapore 4,000+ Sporadic Monitoring 4,000+ Feb 2026
Sri Lanka 71,675 Outbreak* — 71,675 Feb 2026
Thailand 51,795 1,128 440 53,363 Feb 2026
Vietnam 184,903 Sporadic — 184,903 Feb 2026
ASIA-PACIFIC TOTAL 976,295+ 73,688 440 1,050,423+ Feb 2026

* Sri Lanka chikungunya outbreak: Largest in 20 years with Indian Ocean Lineage (IOL) variant
Table data reflects latest available figures from each country's most recent surveillance reports
"—" indicates no reported cases or surveillance data unavailable

REGIONAL EPIDEMIOLOGICAL OVERVIEW

Critical Developments in Asia-Pacific 2025:

1. CHINA'S HISTORIC CHIKUNGUNYA OUTBREAK (16,000+ cases)
• First major temperate region outbreak of this scale globally
• Guangdong Province epicenter with documented cases in major cities
• Represents potential for disease expansion to new geographic areas
• Epidemiological significance: Challenges historical understanding of chikungunya geographic limitations

2. SRI LANKA'S LARGEST CHIKUNGUNYA OUTBREAK IN 20 YEARS
• Indian Ocean Lineage (IOL) with novel mutations detected
• Genomic characterization reveals enhanced Aedes aegypti transmission efficiency
• Sustained transmission continuing into 2025
• Regional concern: IOL variant potential spread to Indian Ocean territories

3. SOUTH ASIA DUAL MOSQUITO-BORNE DISEASE CRISIS
• Bangladesh: 102,562 dengue cases + 732 chikungunya cases in 2025
• India: 91,015 confirmed dengue cases + 34,876 chikungunya cases
• Sri Lanka: 71,675 dengue cases + largest chikungunya outbreak in 20 years
• Complex epidemiology: Multiple diseases competing for surveillance and resources

4. SOUTHEAST ASIA SURGE - MULTI-COUNTRY ACTIVITY
• Philippines: 123,431 dengue cases with 437 deaths (as of Aug 2025)
• Vietnam: 184,903 dengue cases with 43 deaths (full year 2025 total)
• Indonesia: 122,110 dengue cases + 20,000 chikungunya cases
• Combined burden: Over 430,444 cases in three major countries alone

5. VIRAL STRAIN EVOLUTION
• DENV-2: Dominant serotype in multiple countries (Singapore, regional spread)
• Indian Ocean Lineage (IOL): Enhanced transmission chikungunya in Sri Lanka, Indian Ocean
• Asian Lineage: New chikungunya outbreak in China (Guangdong)
• Scientific concern: Genetic changes may alter transmission dynamics

Positive Developments:

• Malaysia: Continued downward trend in dengue cases compared to 2024 - successful control measures
• Thailand: Declining dengue trend with improved case management
• Singapore: Project Wolbachia demonstrating measurable impact on dengue suppression
• Nepal: Year-over-year decline in dengue cases
• Laos: Significant improvement in early season case trends

Key Risk Factors for Asia-Pacific:

⚠ Monsoon patterns continuing to drive vector proliferation
⚠ Climate anomalies (La Niña effects) increasing rainfall
⚠ High viral circulation established across multiple countries
⚠ Vector populations at elevated levels in urban areas
⚠ International travel facilitating disease dissemination
⚠ Variable surveillance capacity across countries

PUBLIC HEALTH INITIATIVES IN ASIA

Vector Control: Intensive mosquito surveillance and control programs across all countries
Surveillance Enhancement: Real-time monitoring systems improving in most countries
Strategic Initiatives:
• Indonesia: Zero dengue deaths by 2030 program
• Singapore: Project Wolbachia - Wolbachia-infected mosquito releases
• Regional: Enhanced cross-border surveillance coordination through WHO SEARO

Data sources: WHO, WHO SEARO, WHO WPRO, CDC, ECDC, ProMED, Media Reports, National Health Authorities; Last updated 09/02/2026

Data Freshness Summary (February 2026)

Most Recently Updated Countries (Media-Based):
✓ Philippines - Feb 5, 2026 (National Epidemic Declaration)
✓ China (Guangdong) - Feb 2, 2026 (Chikungunya record update)
✓ Malaysia - Jan 28, 2026 (Media reports & Travel alerts)
✓ Singapore - Jan 15, 2026 (NEA Cluster monitoring)
✓ Indonesia/Bangladesh/Vietnam - Feb 2026 (Latest media indicators)

Previously Reported Baseline:
• India, Thailand (Oct/Nov 2025), Cambodia, Laos, Maldives, Nepal, Sri Lanka (Mid-2025)

Note: Dashboard contains mixed-date data from official health sources and recent media reports. Malaysia data based strictly on media reports for 2026. Thailand figures significantly revised upward with latest WHO SEARO data. Philippines declared national epidemic in early 2026. China Guangdong outbreak reaches record highs for Chikungunya.

Latest News & Media Coverage

Most recent updates from global health organizations and news sources

Date Title Organization Disease
Feb 05, 2026 Philippines Declares National Epidemic Following Dengue Surge DOH Philippines Dengue
Feb 02, 2026 China's Guangdong Outbreak: Chikungunya Cases Surpass 16,000 Guangdong CDC Chikungunya
Jan 28, 2026 CDC Issues Level 2 Travel Notices for 11 Asia-Pacific Nations CDC Dengue
Jan 15, 2026 Singapore Monitoring New Dengue Clusters in Early 2026 NEA Singapore Dengue
Nov 05, 2025 Europe Sets New Records for Mosquito-Borne Diseases European Centre for Disease Prevention and Control (ECDC) Chikungunya
Nov 01, 2025 Dengue and Severe Dengue Fact Sheet World Health Organization (WHO) Dengue
Nov 01, 2025 Dengue Epidemiological Situation in the Region of the Americas Pan American Health Organization (PAHO) Dengue
Nov 01, 2025 Chikungunya virus disease - Global situation World Health Organization (WHO) Chikungunya
Oct 31, 2025 Public Health Investigating First Case of Locally Acquired Dengue for 2025 Mosquito Season LA County Department of Public Health Dengue
Oct 29, 2025 Chikungunya Outbreak Update - Hong Kong Hong Kong Government Information Centre Chikungunya
Oct 21, 2025 Heavy rains, flooding drive surge in flu, leptospirosis, dengue cases Philstar.com Dengue
Oct 14, 2025 New York State Department of Health Confirms First Locally Acquired Case of Chikungunya NY State Department of Health Chikungunya
Oct 06, 2025 What is the chikungunya virus, how are countries such as China battling it Al Jazeera Chikungunya
Oct 02, 2025 PAHO warns of increased risk of dengue outbreaks due to circulation of DENV-3 Pan American Health Organization (PAHO) Dengue
Sep 22, 2025 Health Alert: Chikungunya Virus in Italy U.S. Embassy Rome Chikungunya
Sep 09, 2025 Regions seeing spikes in dengue fever during seasonal transition The Jakarta Post (Batam) Dengue
Sep 04, 2025 India reports over 30,876 suspected chikungunya cases and 1,741 confirmed cases in early 2025 WHO South-East Asia Region Chikungunya
Sep 04, 2025 Over 65,000 cases of dengue fever in Vietnam this year with 11 deaths Vietnam Ministry of Health Dengue
Sep 08, 2025 Regions seeing spikes in dengue fever during seasonal transition The Jakarta Post Dengue
Sep 04, 2025 Over 65,000 cases of dengue fever in Vietnam this year with 11 deaths Vietnam Ministry of Health Dengue
Sep 04, 2025 India reports over 30,876 suspected chikungunya cases and 1,741 confirmed cases in early 2025 WHO South-East Asia Region Chikungunya
Aug 30, 2025 CDC warns travelers after more than 8000 chikungunya cases reported in China Vaccine Advisor Chikungunya

Table displays latest 15 media releases. For complete archive of 48 unique articles (2022-2025), see the News & Events page.

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