Research has been uncovered in the University of Glasgow's archives which is believed to document the first every discovery of the Zika virus, which is currently causing birth defects in babies in South America.
Professor Alexander Haddow documented the virus in the Zika forrest, Uganda, in the 1940s through to the 1960s.
There are hand written notes and statistics on the first ever catch of mosquitos carrying Zika virus among the collection.
The University of Glasgow announced the find on their website this week.
The find is particularly important as researchers at the university are currently working towards finding a way to stop the current Zika outbreak which has reached pandemic levels.
Moira Rankin, senior archivist, told the university's website: “This is one of the most exciting discoveries we have made in the archive. We always knew we had some of Alexander Haddow’s materials, but we didn’t realise the amount of Zika related content that was in there.
“It’s been a particularly interesting and important find given the university’s current involvement in Zika virus research. This Zika collection find really brings to light how involved the University of Glasgow has been in Zika work from the beginning.”