Chikungunya worldwide overview
Situation update, June 2024
In 2024, and as of 31 of May, approximately 320 000 CHIKVD cases and over 120 deaths have been reported worldwide.
A total of 19 countries reported CHIKVD cases from the America (12), Asia (6), and Africa (1).
Three-month Chikungunya virus disease case notification rate per 100 000 population, March-May 2024
Overview
In 2024, and as of 31 of May, approximately 320 000 CHIKVD cases and over 120 deaths have been reported worldwide. A total of 19 countries reported CHIKVD cases from the America (12), Asia (6), and Africa (1).
Most countries reporting high CHIKVD burden are from the Americas, in South and Central America. Countries reporting highest number of cases in the Americas are Brazil (317 563), Paraguay (3 034), Argentina (632), and Bolivia (346). Additional countries reporting CHIKVD cases in the Americas can be found at PAHO’s dedicated website.
Outside of the Americas, CHIKVD cases were reported in Asia from Pakistan (459), Maldives (389), India (225), Thailand (221), Timor Leste (195), and Malaysia (25). One African countries reported CHIKVD cases in 2024: Senegal (7).
No autochthonous cases of CHIKVD have been reported in Europe in 2024. CHIKVD associated deaths were reported from Brazil (125).
Updates from selected countries
Maldives
Since the previous update, 149 new CHIKVD cases have been reported in the Maldives. CHIKVD cases in the Maldives increased constantly since epidemiological week 13 until epidemiological week 18, when the highest number of cases were registered, following with a decreasing trend in epidemiological week 19, the last available epidemiological week with data.
Since the start of the outbreak and as of 11 May, 389 CHIKVD cases have been reported in the Maldives. To date, no CHIKVD-related deaths have been reported during this outbreak. Most cases have been reported from Malé and Hulhumalé, the most populated islands of the archipelago.
ECDC assessment:
The likelihood of onward transmission of dengue and chikungunya virus in mainland EU/EEA is linked to importation of the virus by viraemic travellers into receptive areas with established and active competent vectors (e.g. Aedes albopictus and Aedes aegypti). Aedes albopictus is established in a large part of Europe. In Europe and neighbouring areas, Aedes aegypti is established in Cyprus, on the eastern shores of the Black Sea, and in the outermost region of Madeira.
The current likelihood of the occurrence of local transmission events of chikungunya and dengue viruses in areas where the vectors are present in mainland EU/EEA is high, as the environmental conditions are favourable for vector activity and virus replication in vectors.
All autochthonous outbreaks of CHIKVD and dengue in mainland EU/EEA have so far occurred between June and November.
N.B: The data presented in this report originates from both official public health authorities and nonofficial sources, such as news media. Data completeness depends on the availability of reports from surveillance systems and their accuracy, which varies between countries. All data should be interpreted with caution and comparisons, particularly across countries, avoided, due to underreporting, variations in surveillance system structure, varying case definitions between countries and over time, and use of syndromic definitions.
Map
Countries/territories reporting Chikungunya cases since June 2023, and as of May 2024
In 2024, and as of 31 of May, approximately 320 000 CHIKVD cases and over 120 deaths have been reported worldwide. A total of 19 countries reported CHIKVD cases from the America (12), Asia (6), and Africa (1).
