Wrażliwość Microtus arvalis i niektórych stawonogów na zakażenie wirusem grypy

The experiments I and II were conducted on 2 white mice, 5 Microtus arvalis, 2 Gamasides, 91 Hoplopleura acanthopus and 200 Polyplax spinulosa. For the experiments the influenza virus PR8 was used) As regards Microtus arvalis it was proved, that it is susceptible to the virus of influenza PR8. The susceptibility of Microtus arvalis proved to be not lower than that of white mice. The virus of influenza PR8 was isolated from the lungs of all the examined white mice and Microtus arvalis. In not a single case, however, the virus could be isolated from the Gamasides, neither from the Hoplopleura acanthopus nor from the Polyplax spinulosa in spite of the fact that undoubtedly in all the exarnined mice the virusal infection run in the from of virusemia. This is an indication that the Gamasides, Hoplopleura acanthopus and Polyplax spinulosa could not be infected with the virus of influenza PR8 (or that the virus was destroyed after the penetration to the organism of the Arthropoda with the blood of the host). The experiments should be repeated on a larger materiał and the virusemia of mice should be submitted to control. It appears that Microtus arvalis is a suitable animal for experimental infection with the virus of influenza.