Aedes aegypti mosquitoes found on Oahu
This particular species, Aedes aegypti, has not been seen on the island of Oahu since 1949. State health officials are concerned because the Aedes aegypti can quickly spread dengue and yellow fever if it acquires the infection, according to KHON2.com.
Hawaii's health department recently announced that vector control teams found eight of the mosquitoes at a trap set up near the airport.
"Aedes aegypti are commonly found throughout the Pacific area where there are serious outbreaks of dengue fever," Bruce Anderson, a former State Health Director, said, KHON2.com reports.
The trap was examined for mosquito eggs in late January. Out of 20 mosquito eggs present, eight were thought to be Aedes aegypti. Vector control's beliefs were confirmed as they watched the four male and four female mosquitoes grow into adulthood.
"They are aggressive mosquitoes," Anderson said, KHON2.com reports. "They bite many people in sequence, which allows them to transmit the disease."
On the Big Island, the Aedes aegypti has been found in isolated areas, but it has not been seen on Oahu for 60 years. Anderson said that it is most likely that it came to the island on an aircraft or was otherwise introduced to the island.