Viruses

Alpha viruses

Alpha viruses have a genome represented by single-stranded positive linear RNA with a molecular weight of 4.2 MD. Virions are spherical in shape, with a diameter of 60-80 nm.

The Arenaviridae family consists of one genus, including over a dozen antigenically related representatives. Four of them cause severe diseases, usually accompanied by hemorrhagic syndrome: lymphocytic choriomeningitis (LCM), Lassa fever, Junin fever, and Machupo fever.

Bunyaviruses

The Bunyaviridae family (from the name of the Bunyamwera region in Africa) is the largest in terms of the number of viruses included in it (over 250). This is a typical ecological group of arboviruses.

Omsk hemorrhagic fever virus

Omsk hemorrhagic fever is an endemic disease transmitted through the bites of ticks of the genus Dermacentor and sometimes by infection through direct and indirect contact with muskrats or water rats.

Yellow fever virus

Yellow fever is an acute, severe infectious disease characterized by severe intoxication, two-wave fever, severe hemorrhagic syndrome, and kidney and liver damage.

Japanese encephalitis virus

Japanese encephalitis is a natural focal disease transmitted by mosquitoes of the genus Culex and other genera of the subfamily Culicinae.

Tick-borne encephalitis virus

Tick-borne encephalitis is a disease that is registered in habitats of carriers - ixodid ticks.

Togaviruses and flaviviruses

Togaviruses (Latin toga - cloak) are divided into 3 genera: alpha viruses (arboviruses of antigen group A) with the type species - the Sindbis virus

Arboviruses

The name "arboviruses" (Latin Arthropoda - arthropods and English borne - transmitted) is currently understood to mean viruses transmitted to susceptible vertebrates (including humans) through the bites of blood-sucking arthropods.

Reoviruses, genus orbiviruses

The Reoviridae family consists of 3 genera: reoviruses, rotaviruses and orbiviruses. Representatives of orbiviruses are Colorado tick fever viruses, Kemerovo group viruses, etc.