Regional Dengue Situation

Bangladesh

As of 18 February, a total of 1,278 dengue cases, including 16 dengue-related fatalities have been reported. This is five times igher than 654 cases reported during the same period in 2023. In 2023, the country reported 321,179 dengue cases and 1,705 dengue-related fatalities (CFR=0.53%).

Cambodia

As of epidemiological week 04 of 2024, the National Dengue Surveillance System reported a total of 1,972 cases with five deaths (Case Fatality Rate (CFR) 0.25%) since 1 January 2023, an increase by 307% (n=484), as compared to cases reported in 2022 over the same period.

China

There has been a total of 19,627 dengue cases and one death in the country in 2023.

India

As of 17 September 2023, 94,198 dengue cases and 91 fatalities have been reported in India. In comparison, India reported 233,251 dengue cases and 303 fatalities in 2022. Moreover, 93,455 suspected chikungunya cases have been reported during the same period. Of them, 3,711 cases have been confirmed. India reported 148,587 suspected chikungunya cases (8,067 confirmed cases) in 2022. Low level Zika virus transmission has also been reported in Kerala and Maharashtra in 2023.

Lao PDR

The cumulative number of cases reported in 2024 (as of epidemiological week 5) is 732, with no fatalities. This is a 170% increase compared to the 271 cases reported during the same period in 2023.

Malaysia

The cumulative number of dengue cases reported up to week 6 of 2024 is 22,058 cases, which is an increase of 68.5% compared to 13,094 cases for the same period in 2023. As of epidemiological week 6, 10 dengue-related deaths have been reported, compared to 9 deaths for the same period in 2023. As of December 2023, 193 chikungunya cases have also been reported. None of 3,733 blood samples and 411 urine samples tested as of December 2023 was positive for Zika virus.

Maldives

Between January and November 2023, a total of 3,223 cases of dengue have been reported in Maldives compared to 2,490 cases reported during the same period in 2022.

Philippines

As of 2 December 2023, a total of 195,603 dengue cases have been reported. The number of cases is 23% lower compared to the same period in 2022 (n=252,700). From 1 January to 2 December 2023, there have been 657 deaths (CFR 0.34%) as compared to 894 deaths (CFR 0.35%;) reported in the same period in 2022. As of 20th September 2023, 1,409 chikungunya cases have been reported in the Philippines, a 213 percent increase compared to the same period in 2022 when 450 cases were reported.

Singapore

Cumulatively, a total of 2,027 cases have been reported as of epidemiological week 5 of 2024. When compared with week 5 in 2023 (1,239 cases), there has been a 63.6% increase in cases reported in week 5 of this year. Preliminary results of all positive dengue samples serotyped in January 2024 showed DEN-1, DEN-2, DEN-3, and DEN-4 at 21.3%, 62.7%, 11.6%, and 4.4% respectively.

Sri Lanka

As of 18 February 2024, 14,646 dengue cases have been reported.

Thailand

As of February 2024, 13,347 dengue cases including 11 dengue-related fatalities (CFR=0.08%) have been reported. In 2023, a total of 159 219 dengue cases and 179 dengue deaths were reported in Thailand. More than 758 Zika virus infections and at least 13 babies born with birth defects were reported in 2023. This is compared to 190 infections in 2022 and 63 infections in 2021. In addition, As of 30th November 2023, 1,277 chikungunya cases have also been reported in Thailand.

Vietnam

As of epidemiological week 2 of 2024, 3,758 dengue cases (no fatalities) have been reported in Viet Nam. The number of cases decreased by 32.3% as compared to the same period in 2023.

Data sources: Media releases, WHO, healthmap, ProMed and European CDC; updated on 04/03/2024

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