Unvaccinated doctors not so threatening

Key studies cited in support of mandatory flu vaccination of doctors and nurses are flawed, undermining the claim that unvaccinated healthcare workers (HCWs) pose a high threat to patients, researchers say.

Infectious diseases physician Professor Peter Collignon, from the Australian National University, and international colleagues say basic mathematical principles have been flouted in the studies which massively over-estimate the effect of health care worker vaccination.