While the emergence of the delta variant in the U.S. has made many companies delay the return to in-person work or mandate vaccinations, in other offices, immunosuppressed people like Elizabeth Groenweghe are left to cobble together their own strategies to minimize their risks. The delta variant raises the stakes for many who were already concerned about catching covid when they return. Those who have the option to keep working remotely have done so — but worry about what it means for their careers as their colleagues return to the workplace.