The Pan American Health Organization (PAHO) has issued a new Rapid Risk Assessment (RRA) highlighting a sharp increase in yellow fever cases across the Americas, warning that the public health threat remains high in 2025.
According to the report, released on May 23, confirmed human cases of yellow fever have surged to 221 so far this year—more than eight times the number reported during the same period in 2024. The outbreak has also claimed 89 lives. For comparison, the entire year of 2024 saw just 61 cases and 30 deaths.
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