Infectious Disease Epidemiology

Arizona Influenza Activity 2006-2007

2006–2007 Influenza Season

What is the MMWR Week?

The MMWR week corresponds to the week of the year.  It does not refer to the same dates every year. MMWR weeks last from Sunday through Saturday and usually range from 1 to 52. Depending on how the days of the year fall within the weeks, it is possible to occasionally have a Week 53.