Viraemia

Part of speech: noun

Definitions

1. The occurrence of viral particles in the circulatory system indicates an active infection or health complication
2. A state in which viruses are found in the blood can signify serious medical conditions or infections
3. The condition where viruses circulate within the bloodstream during an infection

Etymology: Viraemia is a modern medical coinage, built by combining two classical elements rather than inherited from ancient medicine. The first part comes from Latin "virus", which meant "poison" or "slimy liquid," and it was adopted into English for the infectious agents we now call viruses. The second part comes from Ancient Greek "haima", meaning "blood," the same root behind words like anaemia and haemorrhage. Joined together, the pieces describe a condition in which the infectious agent itself is found moving through the blood. The rest of the story is a matter of how the two parts were put together. Because the Latin "virus" was originally a general word for a poisonous or noxious fluid, its later application to microscopic infectious agents shifted its sense considerably, but the Greek half kept the older concrete meaning of blood. The result is a hybrid, a pattern common in scientific vocabulary, where Latin and Greek roots are mixed to name a newly understood phenomenon.