This is the 1736th most frequent Polish word.
szczepień
"Vaccinations" or "inoculations."
The word 'szczepień' is in the genitive plural form, referred to in the context of discussing the general concept of vaccinations.
W szkole dyskutowano o zaletach szczepień.
In the school, they discussed the benefits of vaccinations.
Here 'szczepień' denotes a specific schedule of vaccinations, again in the genitive plural form due to its use with 'harmonogramu'.
Rodzice są odpowiedzialni za przestrzeganie harmonogramu szczepień.
Parents are responsible for adhering to the vaccination schedule.
In this phrase, 'szczepień' refers to the organized administration of vaccinations, in the genitive plural form as it follows 'program.'