What is the sentiment of this news? Please choose an answer from {strong negative/moderately negative/mildly negative/neutral/mildly positive/moderately positive/strong positive}.

Shares of Walgreens Boots Alliance (NASDAQ: WBA) imploded in the wake of what were otherwise stellar results and guidance because of COVID. The company didn't catch COVID and there weren't any major COVID-related shutdowns which is ultimately the problem.
strong negative