Sirkka, tarkoitatko terveyskeskuksen vuodeosastolla vai terveyskeskuksessa esim. odottamassa lääkärin vastaanottoaikaa???
Asked the submitter if she means to say the people are at the centre waiting for their appointment with the doctor (then I would say "they need health care" perhaps) - or if the people are admitted to the centre to be nursed there for some time.