![A respiratory therapist treats a Covid-19 patient in the ICU at Rush University Medial Centre in Chicago, Illinois. AFP](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/YZPHRGGNGGYIKDKTIKD23QKYLQ.jpg?smart=true&auth=00723ed555d91b7ed697f0feff090b10af19e7d7bb30bdb7e992dd545b2c2d28&width=400&height=225)
A respiratory therapist treats a Covid-19 patient in the ICU at Rush University Medial Centre in Chicago, Illinois. AFP
A respiratory therapist treats a Covid-19 patient in the ICU at Rush University Medial Centre in Chicago, Illinois. AFP
US surpasses 900,000 deaths from Covid near end of Omicron surge
'Still we have to be on the alert,' President Joe Biden said