Adds detail LONDON, April 21 (Reuters) - Global miner Anglo American's AAL.L first-quarter production fell 10% year on year, partly owing to operations running at reduced capacity because of higher rates of COVID-19 infections among workers, it said on Thursday. The London-listed company also lowered full-year guidance on volumes for metals including platinum, iron ore and metallurgical coal to reflect inflationary price pressure that lifts its costs per unit of production. Full-year unit cost guidance for copper production rose 5% to $0.147 per pound.