Florida health officials have also reported positive Eastern equine encephalitis cases in one emu, one eagle, and 34 sentinel chickens from 17 counties.
A new vaccine provided complete protection, in nonhuman primates, against three types of equine encephalitic viruses that are possible bioterrorism agents.
The study revealed extensive genetic diversity as well as spatial dispersal of EEEV within Florida. Additionally, Das and colleagues observed more clustering of the disease in the Panhandle region. The findings, they said, indicate that EEEV is present year-round in the Florida Panhandle and that the region could be “seeding” EEEV epizootics in the rest of the state and the Northeastern US.
Madariaga virus (MADV), also known as South American eastern equine encephalitis virus, has been identified in animals and humans in South and Central America, but not previously in Hispaniola or the northern Caribbean.
Health officials say a resident of western Michigan has been infected with Eastern equine encephalitis.
There are new concerns over eastern equine encephalitis, as two human cases have been reported in Central Florida.
So far in 2018, positive samples from one human, thirty-five horses, one mule, one donkey, one owl, one emu, four emu flocks, two mosquito pools, and seventy-seven sentinel chickens have been reported from twenty-seven counties.
Two horses died of eastern equine encephalitis virus in the Tomah area, according to the Wisconsin Veterinary Diagnostic Lab.
The state veterinarian reported that a horse from Dillon County was diagnosed with Eastern Equine Encephalitis on July 21.