South Korea on Wednesday reported its highest daily rise in coronavirus cases since March, as outbreaks from churches around Seoul spread, prompting fears of a nationwide wave of infections.The 297 new cases mark the sixth straight day of triple-digit increases, taking the national tally to 16,058 infections with 306 deaths, according to data from health authorities.Nearly 90 per cent of the new cases appeared in the capital, Seoul, and surrounding areas, raising concern of the rapid spread of…