By mid-April, up to 5,000 antigen tests a day will be provided to people admitted to hospitals with suspected coronavirus, frontline NHS staff and people who are classed as extremely vulnerable.
Ar hyn o bryd gall gymryd hyd at 45 o funudau i lanhau ambiwlansys ar ôl iddynt gludo cleifion yr amheuir bod y coronafeirws arnynt.