The association of nursing home infection preventionists' training and credentialing with resident COVID 19 deaths.

NHs with LPN IPs without training in infection control had higher death rates than NHs with LPN IPs with training in infection control, or NHs with RN/advanced clinicians in the IP role, regardless of IP training. IP training of RN/advanced clinician IPs was not associated with death rates. These findings suggest that efforts to standardize and improve IP training may be warranted.