The port cities were quarantined as a precautionary measure, though no cases of the disease had been found.
Fearing attack on the northern ports by the English, he even took precautionary measures by strengthening the defense of Shan-hai-kuan 山海關 and Ch‘in-huang-tao 秦皇島.1941, Huang Yen-yü, “Viceroy Yeh Ming-ch‘ên and the Canton Episode (1856-1861)”, in Harvard Journal of Asiatic Studies, volume 6, Cambridge, Mass.: Harvard-Yenching Institute, →ISSN, →OCLC, pages 46–47:
1 more example
Nebraska Gov. Jim Pillen, a Republican, issued a statement in support of the raids and signed a proclamation Friday to activate the National Guard as a precautionary measure “in anticipation of anti-ICE protests” this weekend.2025 June 15, Nicole Acevedo, “How a city in Nebraska is recovering after the state's largest worksite immigration raid”, in NBC News:
Thou seest, Belford, by the above precautionaries, that I forget nothing.1748, [Samuel Richardson], Clarissa. Or, The History of a Young Lady: […], volume (please specify |volume=I to VII), London: […] S[amuel] Richardson; [a]nd sold by John Osborn, […], →OCLC: