Since 1980, dengue has been a constant concern in the Americas, with outbreaks occurring every three to five years. These outbreaks have varied in magnitude and have been influenced by factors such as climate change, urbanization, and population mobility. The disease has shown a tendency to spread beyond historically endemic areas, increasing the risk of transmission to new populations.
In recent decades, an increase in the reporting of cases has been observed, which may be attributed to greater awareness and improvements in surveillance systems. However, there have also been periods when dengue transmission has decreased, possibly due to effective vector control interventions and public health campaigns.
In summary, dengue remains a major public health challenge in the Americas, with a continued need for surveillance, prevention, and control to mitigate the impact of this disease on the population.