Imported from NNDSS: Varicella disease
Transmission methods vary. Please consult CDC or WHO resources for specific information.
Contagious Period: Varies by disease
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A rapidly escalating chickenpox outbreak in Rohingya refugee camps in Cox's Bazar has produced 8769 cases over three months, representing a nearly seven-fold increase from the previous six-month period. The outbreak is driven by extreme overcrowding, inadequate sanitation, and the inability to isolate infected individuals in single-room family shelters, with transmission concentrated among immunologically naive children during the seasonal peak period for varicella-zoster virus circulation in Bangladesh.
Source: BEACON - View Full Report
Thailand is experiencing a significant chickenpox outbreak with 10 560 cases reported through early March 2026, primarily affecting school-aged children during the seasonal peak transmission period. The outbreak is following expected patterns with low severity, no deaths, and a 1.97% hospitalization rate, though the absence of a national vaccination program leaves the pediatric population fully susceptible to continued transmission through educational settings.
Source: BEACON - View Full Report
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View WHO Resources →Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-04-19
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