Charles Louis Alphonse Laveran, a French army medical doctor, was given Nobel prize in 1907 for having described how protozoans caused malaria. This is a text the scientist wrote about his discovery and was published in his necrology in 1922:
"I had the opportunity to autopsy people dead by "pernicious fever" and study the melanemia, let's say the formation of black pigment in the sick's blood, that had been described by various observers, but without linking it with malaria."
Apart the fact melanemia isn't a French word, of course, the Nobel Prize didn't cited the earlier observers. Not much had observed such a thing. Principally Collumela, a Roman doctor that described "Roman fever" (not yet called malaria) 1cAC. It would have been recognizing malaria came from Rome, and not from Africa, as Laveran pretended.
https://www.wikiwand.com/en/Columella
http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199248506.001.0001/acprof-9780199248506
https://www.historiadelamedicina.org/laveran.html