Alerts in Southeast Asia

Malaria - Thailand

Thailand reported 5,206 malaria cases in the third quarter of 2023 (July – September), an increase of 48% compared to the same period in 2022. P. falciparum + mixed cases and P. vivax constituted 4% and 95%. of the cases, respectively.


Zika - Thailand

Thai health authorities have reported an increase in cases of Zika virus in the country in 2023 (300% compared to 2022). At least 758 cases reported, including 33 pregnant women and 13 newborns affected (190 cases in 2022 and 63 in 2021). The virus has active transmission in the south of the country (Phuket, Krabi, Ko Jum and Ko Lanta) and a recent case in Ko Samui.


Leptospirosis - Indonesia

The Gunungkidul Health Service (Dinkes), DI Yogyakarta, recorded that 64 residents were confirmed to have leptospirosis, a disease caused by rat urine. This number of cases is among the highest in the last 4 years. "In total, until October 2023, there are 64 cases. The public is advised to remain vigilant because there is the potential for an increase," said Head of the Gunungkidul Health Service, Dewi Irawaty.


Malaria - South East Asia

In Apr-June 2023, Greater Mekong subregion (GMS) countries reported 7142 malaria cases.

Camboya, Laos, Myanmar, Tailandia, Vietnam

Zika - Cambodia

A 7-year-old girl tested positive for Zika virus in Chong Dong (Baray, Kampong Thom). It is the first case reported since 2016.


Diphtheria - Vietnam

There is an outbreak of diphtheria in several provinces in Vietnam. All travelers 2 months and older traveling to outbreak areas should receive an age-appropriate dose of a diphtheria toxoid-containing vaccine if they are not fully vaccinated or if they have not received a booster dose within 5 years prior to departure


Leptospirosis - Philippines

Philippines has reportes 1015 cases (85 deaths) of leptospirosis from 1 January 2023 to 18 March 2023.