There are early indications that influenza activity in the United States is beginning to increase.

Then, in early May, influenza activity began to decline, likely due to the shutdown of most public places in response to the outbreak.

In the absence of specific case reports, the centers monitors influenza activity for all ages in several ways.

Widespread influenza activity in thirty-seven states, regional activity in 11.

No influenza activity is reported in Nebraska.

"And we still have months of influenza activity in front of us."

The remainder of the states reported only sporadic influenza activity or none at all.

It provides up-to-date estimates of influenza activity for more than 25 countries.

The agency monitors influenza activity in a number of ways.

No states reported widespread or regional influenza activity.