This is the 6272nd most frequent Turkish word.
önlenmesine
"Önlenmesine" means "to the prevention of" in English.
Here, "önlenmesine" is used in the context of 'preventing'. It connects to 'tedbirler alınmalıdır' (measures must be taken) as the purpose of the measures.
Yangınların önlenmesine yönelik tedbirler alınmalıdır.
Measures must be taken to prevent fires.
In this sentence, "önlenmesine" refers to 'preventing' disease spread. It clarifies the aim of the ongoing research via the context of 'yayılmasının' (spread).
Hastalıkların yayılmasının önlenmesine dair araştırmalar yapılıyor.
Research is being done to prevent the spread of diseases.
Here, "önlenmesine" is used to express the 'prevention' of problems escalating further. It is emphasized as the focus of the discussed priority in the sentence.