A matrix for the evaluation of COVID-19 contact risk in healthcare workers: Technical note

Durmaz S. , Durusoy Onmuş İ. R.

4. Uluslararası 22. Ulusal Halk Sağlığı Çevrimiçi Kongresi, Ankara, Turkey, 14 - 19 December 2020, pp.1

  • Publication Type: Conference Paper / Summary Text
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.1


The aim of this technical note is to propose a reliable, fast-adaptable and easy-to-use matrix that accurately classifies risk for contact tracing of healthcare workers with COVID-19 patients. The researchers have created a matrix with the support of the literature and their experience within the university hospital surveillance team. This matrix enables a detailed High / Medium / Low Risk classification of contacts of healthcare workers with COVID-19 cases, covering many different contact situations encountered in a university hospital. Three main headings have come to the fore in health worker contact risk classification: Differences caused by the ventilation of the environment: Indoors, well ventilated indoors, outdoors; direct contact or material sharing; aerosol generating procedure. The matrix has been used effectively in 1169 risky contact interviews over a two-month period (24 August - 23 October 2020). The matrix is quickly adapted by new surveillance team members and is easy to use.