rich1.0Ruby (npub1e8…96eju)https://yabu.me/npub1e8kmagfapqw6f6pup8aekvme3svqcryfkys9y9ck4989959m2jlsm96ejunjumphttps://yabu.meNot everyone washes their hands properly or prepares food carefully everytime. Compare it to the polio vaccine which gives lifetime immunity.