Who discovered the virus? as in virus in biology.

Question

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Answer 1

In the late 19th century, Charles Chamberland developed a porcelain filter with pores small enough to remove cultured bacteria from their culture medium. Dimitri Ivanovski used this filter to study an infection of tobacco plants, now known as tobacco mosaic virus. He passed crushed leaf extracts of infected tobacco plants through the filter, then used the filtered extracts to infect other plants, thereby proving that the infectious agent was not a bacterium. Similar experiments were performed by several other researchers, with similar results. These experiments showed that viruses are orders of magnitude smaller than bacteria. The term virus was coined by the Dutch microbiologist Martinus Beijerinck, who showed, using methods based on the work of Ivanovski, that tobacco mosaic disease is caused by something smaller than a bacterium. He coined the Latin phrase "contagium vivum fluidum" (which means "soluble living germ") as the first idea of the virus.