In the aerospace and electronics industries, "Red Plague" is the nickname for corrosion (
: A galvanic cell forms where silver acts as the cathode and copper as the sacrificial anode.
). It occurs when silver-plated copper is exposed to moisture and oxygen, typically due to damage or gaps in the silver plating.
Historically, "Red Plague" has been used as a derogatory label for various political movements:
: It was a common epithet for Communism , notably appearing in Józef Szczepański's 1944 poem Czerwona Zaraza during the Warsaw Uprising.
: More recently, "Ciuma Roșie" (Romanian for Red Plague) was used by protesters (2017–2019) to describe the Social Democratic Party during anti-corruption demonstrations.