People in Wales need to continue following current Covid rules or stricter measures could be brought in.
That is the stark warning from Wales' Chief Medical Officer (CMO) Dr Frank Atherton.
It comes just days after Wales' coronavirus infection rate hit record high levels -
making it the fourth-highest in the world.
Dr Atherton, who advises the Welsh Government on its Covid response and attends many of the key Sage meetings, told
BBC Wales Breakfast on Monday: "A very significant proportion of the Welsh population is still behaving with extreme caution and realises that we are not out of the woods with this yet, but there is a sense other places that it is all over.
"When we see people not using face coverings, even though it's a legal requirement to do so, that worries me.