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}.
Text: U.S. drugstore chain operators Walgreens Boots Alliance and CVS Health Corp said on Friday they were forced to temporarily shut some stores due to staffing issues triggered by the latest surge in COVID-19 infections.
user
mildly negative
assistant