The highest was in 2016, when 12 people died.
At least three people have died in the United States after contracting the fatal mosquito-borne illness Eastern equine encephalitis (EEE) this year. Researchers have discovered a promising new strategy for combating malaria, a mosquito-borne parasite that claims nearly a half-million lives each year. In 2015, there were hundreds of millions of cases of malaria reported, and nearly 500,000 deaths because of the disease. This comes down to preventing mosquito bites ... summer public health concern Americans have to watch out for in 2019… The Massachusetts Department of Public Health reports there's been a fourth death in the commonwealth from Eastern equine encephalitis. Tests confirmed an 11th human case of EEE, as well.

Five people died from dengue earlier this year. This is most deadly mosquito-borne disease. Disease Cases† Non–neuroinvasive. This makes up more than half of all deaths that come from mosquito-borne illnesses.

Presumptive viremic. West Nile Virus Disease Cases* and Presumptive Viremic Blood Donors by State – United States, 2019 (as of January 7, 2020) West Nile Virus Disease Cases and Presumptive Viremic Blood Donors by State – United States, 2019. … 22 Apr 2020 The primary symptoms of malaria are a high fever, chills, nausea, diarrhea, and vomiting.
The number of dengue-related deaths this year is the second-highest since 2012.