профилактика bedeutet auf Englisch

prevention [preventions]▼(Measure to limit health risks)
noun
[UK: prɪ.ˈven.ʃn̩] [US: pri.ˈven.ʃn̩]

prophylaxis [prophylaxes]▼(prevention of, or protective treatment for disease)
noun
[UK: ˌprɒ.fɪ.ˈlæk.sɪs] [US: ˌprɒ.fɪ.ˈlæk.sɪs]

prevention is better than cure▼(It is better to prevent the creation of a problem than to have to deal with it afterwards.)
phrase
[UK: prɪ.ˈven.ʃn̩ ɪz ˈbe.tə(r) ðæn kjʊə(r)] [US: pri.ˈven.ʃn̩ ˈɪz ˈbe.tər ˈðæn ˈkjʊr]

sanitation▼(the policy and practice)
noun
[UK: ˌsæ.nɪ.ˈteɪʃ.n̩] [US: ˌsæ.nə.ˈteɪʃ.n̩]