With the unexpected increase in human cases of yellow fever in the Americas region between the end of 2024 and the beginning of 2025, the Pan American Health Organization / World Health Organization (PAHO/WHO) issued an Epidemiological Alert.
Today, these health agencies stated, 'The risk of (continued) yellow fever outbreaks is high in the Americas Region.'
Yellow Fever Outbreak Alert Issued for the Americas
Severe Chikungunya Manifestations Confirmed in 20% of Hospitalized Children
Over the past decade, the World Health Organization has confirmed that Chikungunya virus (CHIKV) outbreaks have occurred frequently in about 110 countries. In 2024, outbreaks significantly exceeded previous years, severely impacting both adults and children.
One reason for this uptick in cases may be a CHIKV mutation.