Flu season is here in New Jersey, but other illnesses are in full swing in the Garden State. Here are the symptoms and how long you're contagious.

Most U.S. states are reporting high or very high flu-like activity, while COVID-19 rates remain lower than this time last year.

Respiratory illnesses like influenza, COVID-19, and RSV are surging across the United States, according to CDC data. Norovirus has also been pegged to a large number of cases in recent weeks. Here's how to protect yourself.

Influenza A, COVID-19 and norovirus (stomach flu) are on the rise, according to the Centers for Disease Control and Prevention. But there's a fourth "bug" the public should be aware of: respiratory syncytial virus. RSV causes cold-like symptoms and affects the breathing passages and lungs.

There’s no medication for norovirus. Instead, you’ll need to rehydrate as much as possible with water and other liquids. Seek help if you are dehydrated and notice you have a dry mouth and throat, aren’t urinating as much or feel dizzy when you’re standing up.

While there is a whole host of viruses going around, there are thankfully no new viruses to fret about—the ones we have are bad enough.

The flu, norovirus, COVID and RSV are all at elevated levels — and officials at the CDC expect it to stay that way for weeks. NBC medical contributor Dr. Natalie Azar joins TODAY with tips for keeping you and your family healthy and what to know about vaccines.