Aedes aegypti mosquito thriving and reproducing at an accelerated rate in Latin America
At least 2.1 million people infected with dengue fever in North and South America in 2024
Climate change and warmer temperatures contribute to mosquito reproduction
PAHO expresses concern over surge in cases
Peru declares state of public health emergency due to tripling of dengue deaths compared to 2023
In recent years, the Americas have witnessed a surge in dengue fever cases, with at least 2.1 million people infected in North and South America this year alone. The outbreak has surpassed previous records, prompting the Pan American Health Organization (PAHO) to express concern. Factors contributing to the outbreak include climate change and warmer temperatures that facilitate mosquito reproduction. Peru has been particularly hard hit, with dengue deaths tripling in 2024 compared to the same period in 2023. The Peruvian government has declared a state of public health emergency in Rio de Janeiro as Brazil accounts for the majority of cases in the region. The Aedes aegypti mosquito, responsible for transmitting dengue, is thriving due to climate change and reproducing at an accelerated rate. Experts warn that Latin America is facing a critical situation with dengue fever.
At least 2.1 million people in North and South America have been infected with dengue this year.
About 2.1 million confirmed cases of dengue have been reported in the Americas since January.
Mosquito reproduction is strongly influenced by temperature and rainfall because mosquitoes die off in colder weather and precipitation makes puddles for mosquitoes to lay eggs.
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The author attributes the record-setting dengue fever outbreak in North and South America to climate change without providing any counterargument or acknowledgement of other potential factors. This is an example of monetary bias as the author's employer, E&E News, focuses on environmental issues.
A March study published in the journal Nature found that mosquito reproduction speed is 'strongly influenced' by temperature and rainfall because mosquitoes die off in colder weather and precipitation makes puddles for mosquitoes to lay eggs.
Climate change and El Niño are key factors of this year’s outbreak.
The author attributes the record-setting dengue fever outbreak in North and South America to climate change without providing any counterargument or acknowledgement of other potential factors.
The number of dengue cases in North and South America has exploded over the past several decades. Dengue cases in the Americas are roughly five times higher in the 2020s than in the late 1990s.
