Background:Pertussis (whooping cough) is a nationally-notifiable disease. In 2012, Minnesota reported an incidence of pertussis higher than the national incidence of 13.4/100,000 persons. The CDC recommends a single dose of Tetanus-diphtheria-acellular pertussis (Tdap) vaccine to all healthcare workers who have not received Tdap previously”.Tdap protects against pertussis and reduces the transmission of the disease to others. Objectives: To describe (1) the rates of Tdap vaccination; comparing rates by self-report of vaccination to administrative records of vaccination; (2) the beliefs and attitudes about pertussis concerning the vaccine; (3) the associations between the likelihood of vaccination and the workers beliefs and attitudes about pertussis and the vaccine. Methods: The data reported in the study are derived from a self-administered, internet-based survey to nurses employed at Regions Hospital, St. Paul, Minnesota. Results: There was a response rate of 22%. Of the 68% who self-reported receiving the vaccine, administrative records confirmed only 36% received the vaccine. There was a statistically significant relationship between age and vaccination status with vaccination rates being highest in the younger age groups. A poor agreement of 8% was seen for nurses self-report of receiving Tdap and administrative record of vaccination status. Among those who self-reported not receiving the vaccine, 66.2% expressed interest in receiving the vaccine, 22.5% were neutral towards Tdap vaccination. Conclusion: Based on the available administrative records, the survey seems to demonstrate an important difference in self-described use of the Tdap and administrative records of Tdap vaccination, with nurses over-reporting their use of the vaccine.