Determine the sentiment expressed in the news from financial perspective.
Options: positive, negative

Walgreens Boots Alliance Inc's (NASDAQ: WBA) Q2 FY22 sales increased 3% Y/Y to $33.8 billion, up 3.8% on a constant currency basis, beating the consensus of $33.36 billion. Omicron variant of COVID-19 intensified demand for booster shots and tests and drove foot traffic during the.
positive