Occurrence of exotic carriers arbovirus fevers – new insufficiently estimated biological threat to southern regions of Russia

Delivery of originators of infectious and parasitic illnesses on new territories can pass by means of mosquitoes which in modern conditions extend quickly. Getting on new territories they take roots and provide transfer of this or that originator. Or they provide initial case rate, and then viruses start to circulate among mosquitoes – natural representatives of local fauna. As it was with virus Denge delivered to Greece with mosquitoes Aedes aegypti. This kind of a mosquito by 1950 has been destroyed at the Black Sea coast of Caucasus. In the beginning of 21 centuries this kind again began to be found out in earlier free territories. Occurrence after 50-years absence of an effective carrier in the south of Russia is serious biological threat to epidemic well-being of the country in case of delivery of originators arbovirus infections.