Community health workers put in long hours to protect people in developing countries from diseases such as malaria, Covid-19 and H.I.V. But most are compensated minimally, or not paid at all.
The Ukrainian president joined many world leaders in calling for changes at the Security Council, where five permanent members wield veto power — a high barrier to taking action.
As other major leaders skipped the annual opening session of the General Assembly, Mr. Biden used his address to try to counter war fatigue both at home and abroad.