Robuta

https://www.wikidata.org/wiki/Q45718542
scientific article published in July 1959
plaque assaypolyoma viruswikidata
https://www.pearson.com/channels/genetics/asset/1eed78ca/a-plaque-assay-studies-viruses-through-what-measurement-a-the-number-of-bacteria
A plaque assay studies viruses through what measurement?
plaque assaystudiesvirusesmeasurementstudy
https://www.wikidata.org/wiki/Q45220842
scientific article published in July 1969
on theplaque assayvisna virusobservationswikidata