| [combined focus of tick-borne encephalitis, tick-borne rickettsiosis and tularemia in the habitat of haemaphysalis concinna in south central siberia]. | for the first time in the krasnoyarsk region the population haemaphysalis concinna ticks were found to be infected with the causative agents of three natural focal tick-borne infections--tick-borne encephalitis, tick-borne rickettsiosis and tularemia. the existence of the combined natural focus of these three infections has been confirmed by epidemiological data. ticks dermacentor nuttalli also play a similar role in combined foci of tick-borne encephalitis and tick-borne rickettsiosis in these ... | 2001 | 11236514 |