The Week in Numbers (to the 22 March)

Is it time for another pandemic?

7.2%

In this week’s surveillance, parainfluenza positivity increased to 7.2%, with the highest positivity in under 5-year-olds at 13.2%.  

This is more on a virus that goes under the radar unless there’s one of the golden triads of a rapid test, a vaccine or an antiviral just around the corner.  

Human parainfluenza viruses—HPIVs for short—cause upper and …