omicron remains a problem in the country where it was found. it is spreading at a rate it hasn t seen before. let s get more. david mackenzie is live in johannesburg for us. talk to us about what the w.h.o. said. it sounded really the alarm over the omicron variant. reporter: well, that s right, isa. there is some anecdotal evidence here in south africa and the region of southern africa that there isn t necessarily a big rush on hospitals, which is the good news. now, because it appears, at least, that this variant is far more transmissible, there is a warning from the head of the w.h.o. that it s not time to let our guard down against this pandemic. take a listen. surely we have learned by now that we under estimate this virus at our peril. even if omicron does cause less severe diseases, the sheer