Omicron variant:  how worried should we about it? / 
Jeremy Rossman. 
 - Singapore:  BBC Studios, UK Publishing  2022. 
 - pp. 14-16. 
 - BBC Earth: Your Productive Brain.  No. 13.  Vol. 14,  2737-5560 .
<br/><br/><label>ISSN: </label>2737-5560 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>BBC Earth O 2022