It’s sick season in Philly: the cold-weather months when cases of respiratory illnesses and the “stomach bug” norovirus rise. Some public health experts have called the combination of viruses circulating “the quad-demic” — referring to a wave of illness from the simultaneous spike in COVID-19,

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.

Flu and COVID-19 case counts are high and rising in most parts of the United States, according to recent data by the Centers for Disease Control and Prevention (CDC). RSV case counts are also elevated in most states, especially in children.

The latest confirmed hospitalization data shows notable increases of more than 30% in hospital admissions due to both COVID-19 and RSV during the last full week of December.

Respiratory viruses are on the rise in Brevard, though not at a rate higher than previous years, according to local health systems.

More people around Illinois are getting sick with respiratory illness. The Illinois Department of Public Health said the state is recording high levels of the flu, RSV, and COVID-19, which was an increase from moderate levels the previous week.

Four illnesses are filling Minnesota hospitals, and health leaders are warning you that Minnesota is dealing with a "quad-demic."

In the Twin Cities metro, 470 patients were hospitalized with the flu in the latest week of data. According to the data, influenza A cases have skyrocketed after a late-December surge in school outbreaks.