The serum failed to neutralize the virus in subsequent tests and seemed to offer little protection in animal experiments.
A Washington Post blog asks: “Why do two white Americans get the Ebola serum while hundreds of Africans die?”
“Everyone in the field acknowledges this as a problem,” says Dr. Neil Stephens of the use of the serum.
1670s, "watery animal fluid," from Latin serum "watery fluid, whey," from PIE root *ser- (2) "to run, flow" (cf. Greek oros "whey;" Sanskrit sarah "flowing," sarit "brook, river"). First applied 1893 to blood serum used in medical treatments.
serum se·rum (sēr'əm)
n. pl. se·rums or se·ra (sēr'ə)
A watery fluid, especially one that moistens the surface of serous membranes or that is exuded by such membranes when they become inflamed.
The clear yellowish fluid obtained upon separating whole blood into its solid and liquid components.
Such fluid from the tissues of immunized animals, containing antibodies and used to transfer immunity to another individual.
Plural serums or sera