The annual Lancet report details the health impacts of climate change, such as Bangladesh's record dengue outbreak.
In Gaza, health officials are already seeing spikes in diarrheal illnesses, upper respiratory infections, and skin conditions.
A few weeks ago, health officials in Pasadena reported a local case, marking California's first.
The illness, California's first, prompted stepped-up surveillance and efforts to raise awareness.
Europe had the biggest mpox rise in September, though the Western Pacific region continues to report the highest levels.
Favorable conditions for mosquitos and humanitarian challenges contribute to the high transmission risk in Chad.
Kids younger than 5 are at risk for severe dengue symptoms, including dehydration and shock.
The group urged countries approaching their summer seasons to prepare their health systems for a rise in dengue cases.
As Bangladesh's dengue outbreak spreads outside the capital, Nigeria battles another diphtheria wave and Uruguay reports its first H5 detection in a sea lion.
With a new case in Miami-Dade County, Florida now has 16 dengue infections for the year.
