Central America is grappling with its worst outbreak of dengue fever in decades — and scientists say the disease is likely to spread and become more frequent in the future due to climate change.

Worst hit is Honduras, where about 109 deaths from the mosquito-borne disease have been recorded, many among children, making this year's dengue fever outbreak the deadliest on record in the Central America nation, the United Nations noted.

Also hard hit in Central America are Nicaragua, El Salvador and Guatemala, with other Latin American nations such as Brazil, Paraguay, Colombia and Belize also affected, according to the Pan American Health Organization.