driven, principally, by a new variant, called the -- variant. and that went through the country. and the second wave was much worse than the first wave. and so, much of the country has recovered from that second wave in january. and we have spent the last-three months at low transmission. however, the situation has changed. over the last-three weeks, cases have been rising in three or four of our nine provinces. and in the economic heartland, where johannesburg are, the cases have been rising rapidly. as of today, the cases, the seven-day-moving average of ca cases is now higher, in the third wave, than it's ever been in the first and second waves. >> that certainly doesn't bode well for hospital beds. but also, oxygen. how concerned are you that oxygen supplies will be limited? will run out? how have you prevent -- how are