What does MFF mean in British Medicine?

Metal fume fever

Metal fume fever, also known as brass founders' ague, brass shakes, zinc shakes, Galvie Flu, Metal Dust Fever, or Monday morning fever, is an illness caused primarily by exposure to certain fumes. Workers breathe in fumes from chemicals such as zinc oxide or magnesium oxide, which are themselves created by heating or welding certain metals, particularly galvanized steel. Chromium is also a hazard, from stainless steel. Cadmium, present in some older silver solder alloys can, in extreme cases, cause loss of consciousness within a matter of minutes. Iron itself, and so most simple steels, does not give rise to it.

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