Singapore today recorded 657 new coronavirus cases, most of whom are foreign workers, taking the total number of COVID-19 infections to 18,205.<br />''  <br />'' The Health Ministry said that the number of cases amongst migrant workers has been fluctuating in recent days due to clearance of backlogged cases by one laboratory,<br />'' <br />'' The majority of the new infections are work permit holders residing in foreign worker dormitories, it said, adding that 10 patients are Singaporean citizens or permanent residents. <br />'' <br />'' Singapore yesterday said it will allow some businesses to reopen from May 12 as part of a gradual resumption of selected activities and services amidst a decline in the coronavirus cases at the community level.<br />''