Yesterday, the EEOC published its guidance on the COVID-19 vaccine under the ADA and GINA, in the form of nine Q&As. You can read them in their totality here.
The TL;DR: yes, you can force employees to receive the COVID-19 vaccine as a condition of employment (although the should is an entirely different issue), subject to limits on reasonable accommodations for employees’ disabilities and sincerely held religious practices or beliefs and subject to limits on pre-vaccination medical questions.
If an employer requires vaccinations when they are available, and an employee indicates that he or she is unable to receive a COVID-19 vaccination because of a disability, the employer must accommodate that request unless the employer can show that “an unvaccinated employee would pose a direct threat due to a ‘significant risk of substantial harm to the health or safety of the individual or others that cannot be eliminated or reduced by reasonable accommodation’ … with a “determination that an unvaccinated individual will expose others to the virus at the worksite.” Even then, an “employer cannot exclude the employee from the workplace—or take any other action—unless there is no way to provide a reasonable accommodation … that would eliminate or reduce this risk so the unvaccinated employee does not pose a direct threat.” Moreover, a direct threat determination and an exclusion of an unvaccinated employee from the workplace does not necessarily equate to termination. An employer must in this case consider alternative accommodations, including remote work or an unpaid leave of absence.