The disease so produced is not contagious, and the contagious element seems to be due to the filterable virus.
Up to the present about twenty diseases are known to be due to a filterable virus, and among these are some of the most important for animals and for man.
The class of organisms known as the filterableviruses or the ultra-microscopic or the invisible organisms have a special interest in many ways.
That an animal disease was due to such a minute and filterable organism was first shown by Loeffler in 1898 for the foot and mouth disease of cattle.
The diseases produced by the filterableviruses taken as a class show much similarity.
It has been shown that in this disease two organisms are associated,--one an invisible and filterable organism, and the other a bacillus.
The causative organism of infantile paralysis is unknown, but it has been demonstrated that it belongs to the group of filterable viruses.
It was found, too, that whatever the infective agent might be it was capable of passing through a Berkefeld filter and thus belongs to the puzzling group of "filterable viruses.
Further investigations revealed the fact that blood from affected horses, even when passed through porcelain filters, may transmit the disease, thereby proving that the causative agent belongs to the so-called filterable viruses.
It has been conclusively proved that infectious anemia is produced by an invisible filterable organism which is transmissible to horses, mules, and asses by subcutaneous inoculation of blood serum.
Kennedy paused again, then went on, "Although the filterable viruses have only recently come to attention, it is known that they are of very diverse character.
But I know enough to say that someone has, without doubt, been using some sort of filterable virus to induce cancers, just as the experimenters at the Rockefeller Institute have done with animals.
That something in this case is a filterable virus.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "filterable" in a variety of sentences. We hope that you will now be able to make sentences using this word.
