Mary Wilson
Well-known member
Increasing temperatures contribute to longer dengue seasons, and could drive the geographical expansion of the disease.
27 July 2023
Mariana Lenharo
doi: https://doi.org/10.1038/d41586-023-02423-w
More than three million cases of dengue have been reported in the Americas so far this year. That means 2023 already has the second-highest annual incidence of the disease since 1980, when the Pan American Health Organization began collecting data on the number of cases (see ‘Dengue on the rise’).
“We do observe an increase in cases beyond what was expected for this period,” says Cláudia Codeço, an epidemiologist at the Oswaldo Cruz Foundation, a biosciences and public-health institution in Rio de Janeiro, Brazil. Whether the record of 3.2 million cases reported in 2019 will be broken in 2023 depends on how the disease spreads in Central and North America, because most researchers think the peak of dengue season in South America has passed. ...
Range expansion
Dengue is spreading to regions that were once off-limits to A. aegypti. In Brazil — which has reported nearly 2.4 million cases this year — the disease is expanding into southern states, which were previously too cold for the mosquito. ...
https://www.nature.com/articles/d41586-023-02423-w
27 July 2023
Mariana Lenharo
doi: https://doi.org/10.1038/d41586-023-02423-w
More than three million cases of dengue have been reported in the Americas so far this year. That means 2023 already has the second-highest annual incidence of the disease since 1980, when the Pan American Health Organization began collecting data on the number of cases (see ‘Dengue on the rise’).
“We do observe an increase in cases beyond what was expected for this period,” says Cláudia Codeço, an epidemiologist at the Oswaldo Cruz Foundation, a biosciences and public-health institution in Rio de Janeiro, Brazil. Whether the record of 3.2 million cases reported in 2019 will be broken in 2023 depends on how the disease spreads in Central and North America, because most researchers think the peak of dengue season in South America has passed. ...
Range expansion
Dengue is spreading to regions that were once off-limits to A. aegypti. In Brazil — which has reported nearly 2.4 million cases this year — the disease is expanding into southern states, which were previously too cold for the mosquito. ...
https://www.nature.com/articles/d41586-023-02423-w