Full-length genome analysis of Čalovo strains of Batai orthobunyavirus (Bunyamwera serogroup): implications to taxonomy.

Batai virus (BATV) is a poorly studied arthropod-borne virus belonging to the genus Orthobunyavirus (Bunyamwera serogroup) within the family Bunyaviridae. It has been associated with human influenza-like febrile illness in several Asian, African, and European countries. Čalovo virus (CVOV), isolated in 1960 in Slovakia, has been classified as BATV based on high antigenic similarity, and since then both CVOV and BATV were used as synonyms.

The variability of the large genomic segment of Ťahyňa orthobunyavirus and an all-atom exploration of its anti-viral drug resistance.

Ťahyňa virus (TAHV), a member of the Bunyaviridae family (California complex), is an important but neglected human mosquito-borne pathogen. The virus genome is composed of three segments, i.e.

Detection of mosquito-only flaviviruses in Europe.

The genus Flavivirus, family Flaviviridae, includes a number of important arthropod-transmitted human pathogens such as dengue viruses, West Nile virus, Japanese encephalitis virus and yellow fever virus. In addition, the genus includes flaviviruses without a known vertebrate reservoir, which have been detected only in insects, particularly in mosquitoes, such as cell fusing agent virus, Kamiti River virus, Culex flavivirus, Aedes flavivirus, Quang Binh virus, Nakiwogo virus and Calbertado virus. Reports of the detection of these viruses with no recognized pathogenic role in humans are increasing in mosquitoes collected around the world, particularly in those sampled in entomological surveys targeting pathogenic flaviviruses.

Nucleotide variability of Tahyna virus (Bunyaviridae, Orthobunyavirus) small (S) and medium (M) genomic segments in field strains differing in biological properties.

Tahyna virus (TAHV), a mosquito-borne bunyavirus (California group), is frequently associated with inapparent or influenza-like (Valtice fever) infections in humans, rarely leading to atypical pneumonia or meningitis. Field TAHV strains exhibit a high variability in their biological properties with respect to virulence for laboratory mouse, temperature-sensitivity or character of plaques in cell culture. In consideration of the variations in the antigenic properties TAHV and its potential genetic variability, we analyzed complete nucleotide sequences of the small (S) and medium (M) genomic segments of field TAHV strains with different combinations of phenotypic markers.

Integration of a tick-borne encephalitis virus and Borrelia burgdorferi sensu lato into mountain ecosystems, following a shift in the altitudinal limit of distribution of their vector, Ixodes ricinus (Krkonose mountains, Czech Republic).

The altitudinal shift in the limit of Ixodes ricinus occurrence above the previously established altitude of 750 m above sea level has been monitored over the long-term (2002-2008) in the Krkonose Mts. (Giant Mts.), the highest in the Czech Republic, along two vertical transects in their eastern and central parts (600-1020 and 600-1270 m).