Protection against a meningitis

[@len]

Hello! At me the cousin has died of a meningitis. Has burned down for some days. Today I go on funeral. How I can protect myself from a virus when I shall be is among its or his environment and its or his parents? How much or As far as I know, this virus is passed also air-dropwise by. What do I should make after homing home to secure the relatives?
I shall be grateful for a prompt reply since I leave tonight.