Respiratory Virus Activity


The graph “Positivity of Respiratory Specimens by PCR at Wisconsin Laboratories” represents PCR testing data reported by Wisconsin Laboratories.



  • Due to genetic similarity, most PCR tests cannot differentiate between rhinovirus and enterovirus groups.
  • The data displayed in this graph are laboratory test data and do not represent physician diagnoses. As such, the data can be utilized to illustrate trends in the activity of this agent. No conclusions as to the total number of cases of illness which occurred can be drawn from this data, due to variations in patterns of specimen submission and testing.
  • The data displayed in this graph were reported on a voluntary basis by Wisconsin laboratories and test sites.
  • Note that scales may vary during the season.