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Ivanosky (1892) and Beijernick (1898)
This view was finally dispelled by Landsteiner and
Popper (1909), who showed that poliomyelitis was caused
by a 'filterable agent' - the first human disease to be
recognized as having a viral cause
The solution of sugar in water is easy filterable.
A filterable virus.
they are small that they will pass through filter paper.they may be settable or non settable
Well . . . data can be filtered. I have done it. That does not mean that all data is filterable.