Female Aedes aegypti mosquito as she was in the process of obtaining a "blood meal." (credit: US Department of Health and Human Services)
Puerto Rico has declared a public health emergency amid an ongoing outbreak of dengue infections, a mosquito-spread viral infection that can cause fever, aches, rash, vomiting, and, in about 5 percent of cases, a severe disease marked by internal bleeding and shock.
The US territory has tallied 549 cases since the start of the year, representing a 140 percent increase compared with cases tallied at this point last year, according to the territory's health department. The Associated Press reported that more than 340 of the 549 cases have been hospitalized.
In 2023, the island nation of more than 3.2 million people had over 1,000 cases of dengue throughout the year.
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