mosquitoes and mosquito-borne arboviruses in the qinghai-tibet plateau--focused on the qinghai area, investigation was conducted to identify the distribution of mosquitoes and mosquito-borne arboviruses in the qinghai-tibet plateau, china from july to august in 2007. a total of 8,147 mosquitoes representing six species from three genera (aedes, culex, and anopheles) were collected in three locations (geermu city, altitude of 2,780 m; xining city, 2,200 m; minhe county, 1,700 m). six virus isolates were obtained including tahyna virus (tahv), liaoning virus, and culex pipiens pallens densovir ...201020348523
[characteristics of bunyavirus- and togavirus-induced nonspecific suppressors inhibiting delayed hypersensitivity].some properties and mechanisms of action of nonspecific suppressor cells, inhibiting delayed hypersensitivity to sheep red blood cells and activated in vivo in experimental tick-borne encephalitis and tahyna virus infections in mice, have been studied. these nonspecific suppressor cells have been identified as t-lymphocytes in experiments with the use of antisera to t- and b-lymphocytes. the function of the suppressor cells can be realized without their proliferation and is mediated by a soluble ...19826213121
[the capacity of purified staphylococcal anatoxin to correct antigen-specific and antigen-nonspecific immunological defects].purified staphylococcal toxoid is capable of partially preventing the development of antigen-specific (induced by the supraoptimal dose of sheep red blood cells) and antigen-nonspecific (induced by tahyna virus) defects of humoral immune response, as well as abolishing these defects. the presence and manifestation of the correction of virus-induced immunodeficiency is determined by the dose of the toxoid and the interval between the injections of purified staphylococcal toxoid and the infective ...19921379773
summing up, weak immunomodulating signals of tahyna virus and immunomodulating drugs induce immunosuppression in mice.the successive injection of non-immunomodulating doses of tahyna virus (100 ld50) and non-immunomodulating doses of immunomodulating drugs, such as purified staphylococcal toxoid or glucosaminylmuramyldipeptide (likopid), to mice were accompanied by a decrease in the igm plaque-forming cell response to sheep red blood cells.19979219640
[suppression of the macrophage function in mice in experimental tahyña virus infection].the effect of tahyña virus on the phagocytic activity of macrophages of balb/c mice and their capacity to transmit the antigenic stimulus was studied. the phagocytic activity of mononuclear cells of different localization in tahyña virus-infected mice was shown to vary. the capacity for elimination of indian ink particles from the blood stream associated mainly with the function of liver macrophages in asymptomatic infection increases 24 hours postinoculation, then gets back to normal, and decre ...19836603071
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