https://www.reuters.com/article/us-h...-idUSKBN2C02TL

After 6 months of third phase of trials (emergency use) Moderna just lowered expected efficacy of their COVID vaccine. It officially has no 100% protection against severe illness anymore. Now it is "more than 95%".
Protection against any illness is also lowered from 95,4% to "more than 90%".

1 of 10 contacts with sick person will brings you to bed. 1 of 20 contacts with sick person will brings you to hospital bed.