If you schedule a Covid-19 vaccine appointment with major pharmacy chains such as Walgreens or CVS, your data may be used to bulk up those companies’ own significant marketing apparatuses, giving them a source of income even beyond what they’re paid for administering the vaccines and whatever you might decide to buy while you’re in the store to get one.

A startup named Cooler Screens is piloting a new door for commercial freezers and refrigerators that’s equipped with a camera, motion sensors, and eye tracking in six Walgreens pharmacies around the country, including the one off of Union Square.

<span style="display: inline-block; width: 0px; overflow: hidden; line-height: 0;" data-mce-type="bookmark" class="mce_SELRES_start"></span> Walgreens Boots Alliance Inc. is testing a technology that embeds cameras, sensors and digital screens in the cooler doors in its stores, a new network of “smart” displays that marketers can use to target ads for specific types of shoppers.