With flu season fast approaching, and the Covid-19 pandemic raging on, hospitals and pharmacies across the country are stockpiling far more flu vaccines than normal, anticipating a surge in demand. The drug store chain Rite Aid has purchased 40% more influenza vaccines than other years to meet an expected uptick in demand. Walgreens has also increased its flu vaccine stockpile this year, anticipating a 30% to 50% jump in customers who will want flu shots or other immunizations, the company’s chief medical officer told STAT.