Regional Dengue Situation
Bangladesh
As of 31 March 2024, a total of 1 705 dengue cases including 22 dengue-related deaths have been reported. This is more than twice the number of cases (n=809) and 2.4 times the number of deaths (n=9) 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 11 of 2024, a total of 4,113 cases with 13 deaths (Case Fatality Rate (CFR) 0.32%) have been reported since 1 January 2024. This is almost 4 times the number reported in 2023 for the same period, with 1,177 cases and 3 deaths.
China
In February 2024, 42 dengue cases and no deaths were reported in China. There has been a total of 69 dengue cases and no death in the country from January to February 2024.
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.
Indonesia
As of 15th week of 2024, the number of deaths from dengue fever in Indonesia has surged by 179.4 percent to 475, compared to 170 deaths recorded in the same period last year, according to data from the Ministry of Health. Dengue fever cases this year also saw a significant increase, reaching 62,001 as of week 15 – a 174.9 percent jump from the 22,551 cases reported during the same period in 2023.
Lao PDR
The cumulative number of cases reported in 2024 (as of epidemiological week 11) is 1,499. This is a 167.1% increase compared to the 542 cases reported during the same period in 2023.
Malaysia
The cumulative number of dengue cases reported up to week 7 of 2024 is 25,541 cases, which is an increase of 67.5% compared to 15,243 cases for the same period in 2023. Fourteen dengue-related deaths were reported up to week 7 of 2024 compared to 13 deaths for the same period in 2023. From Dec 2023 to Feb 2024, six 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, 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 4,537 cases (Figure 6) have been reported as of 16 March 2024. When compared with week 11 in 2023 (2,123 cases), there has been a 105.0% increase in cases reported in week 11 of this year. Preliminary results of all positive dengue samples serotyped in February 2024 showed DEN-1, DEN-2, DEN-3, and DEN-4 at 23.0%, 59.8%, 11.7%, and 5.4% respectively.
Sri Lanka
As of 29th March 2024, 22,732 dengue cases have been reported. The highest case burden is in the Western and Northern Provinces.
Thailand
As of 27 March 2024, a total of 22,544 cases including 20 deaths (CFR=0.09%) have been reported. This represents a nearly two-fold increase in cases compared to the same period last year, which saw 11 593 cases and 14 deaths from January to March in 2023. However, cases are in a downward trend from January to March 2024. More than 758 Zika virus infections and at least 13 babies born with birth defects were reported in 2023. This is compared to 200 infections in 2022 and 62 infections in 2021. In addition, from Dec 2023 to Feb 2024, 139 chikungunya cases have also been reported in Thailand.
Vietnam
As of 17 March 2024 (epidemiological week 11), cumulatively 12,937 dengue cases, including no deaths, were reported in Viet Nam. Compared to the same period in 2023 (22,093 cases, including 5 deaths), the number of cumulative cases decreased by 41.3%.Data sources: Media releases, WHO, healthmap, ProMed and European CDC; updated on 18/04/2024