BBCNEWS BBC News December 29, 2021 15:04:00
Omicron strain, has accounted for around 59% of national cases in the week ending december 25. despite this, president biden says travel restrictions on eight southern african countries will end shortly and so far, authorities are determined not to impose restrictions limiting day to day interactions. professor bill hanage is an epidemiologist from the harvard th chan school of public health. he gave me his assessment of the surge in omicron cases in the us.