The centers for Disease Control and prevention is reported that U.S. influenza activity has dropped for the fourth week in a row, with 48 states reporting minimal flu-like illness activity for the week ending April 28, according to an article on the Becker's Leadership and Infection Control website.

Only 1 of 10 U.S. regions reported outpatient flu activity at or above region-specific baselines for the week ending April 28. 

The percentage of outpatient visits for influenza-like illness for the week was 1.5 percent. This figure marks a 0.2 percent decrease from the previous week and falls below the 2.2 percent national baseline, the article said.

Three states reported widespread flu activity for the week ending April 28 — one less than a week prior. Guam, Puerto Rico and seven states reported regional flu activity; 24 states reported local flu activity; Washington, D.C., and 14 states reported sporadic activity; and the U.S. Virgin Islands and two states reported no flu activity.

Read the article.