and that is what you see now in the netherlands and also the rioting which we have seen last week. another new variant has arrived omicron has been detected among passengers who are now in isolation. here at this airport, flights from south africa are continuing to land, so one came in from cape town earlier and another from johannesburg, and these arrivals are causing concern in a country already battling record breaking infection rates. and this is one of europe s busiest transit hubs. there are fears the virus may be travelling on undetected. anna holligan, bbc news. we can speak now to dr meru sheel, infectious diseases epidemiologist and senior research fellow at the australian national university. it s great to have
which we have seen last week. another new variant has arrived omicron has been detected among passengers who are now in isolation. here at this airport, flights from south africa are continuing to land, so one came in from cape town earlier and another from johannesburg, and these arrivals are causing concern in a country already battling record breaking infection rates. and this is one of europe s busiest transit hubs. there are fears the virus may be travelling on undetected. anna holligan, bbc news. i m joined now by professor mary louise mclaws, epidemiologist and adviser on the who s covid infection control group. it s great to have you on the programme, professor. you know, the new variant has already been detected in australia, many parts of the world as well, how concerned are