NELLIE PEYTON HEALTHCARE workers fighting coronavirus in dozens of countries are facing violence from fearful communities who have attacked doctors and burned down clinics, aid agencies said on Tuesday. In Colombia, ambulances were blocked from entering a town to screen for COVID-19 cases, said the International Committee of the Red Cross (ICRC), which recorded 611 incidents targeting health workers, patients and facilities from February to July. In South Africa, a testing station and a clinic were torched by people who did not want responders in their neighbourhood, said medical charity Medecins Sans Frontieres (MSF). "It's a byproduct of the new,…