n.滴定度；滴定量；滴定率；脂酸凍點(diǎn)測定
=titer.
The bacterium is the Gramnegative bacillus Legionella pneumophila and the diagnosis confirmed by a rising antibody titre. 本病由革蘭陰性的需氣軍團(tuán)桿菌所引起，抗體滴定度升高可確定診斷。
