After the holiday season and an uptick in travel, California faces a rise in respiratory illnesses, prompting health experts to talk of a “quad-demic.” The term refers to the simultaneous spread of four major viruses: COVID-19,

The flu vaccine is generally about 40% effective at completely preventing influenza, according to Blumberg. The flu vaccine protects against three strains of influenza, including two influenza A strains. It also protects against influenza B, which typically shows up later in the season, Blumberg said.

The CASPER also found that just less than half of households reported having at least one health symptom caused by the cross-border sewage crisis, such as headaches, nausea and dry throat. Most with chronic conditions, such as allergies, migraines, asthma and lung pain, said their symptoms have worsened.

How does norovirus spread? What are common symptoms? And how can you keep from getting sick? Here’s what to know: What is norovirus? Norovirus is a “very contagious” virus t

The U.S. Centers for Disease Control and Prevention (CDC) confirmed another human H5N1 avian flu case -- otherwise kno

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

The CDC has confirmed a positive bird flu case in a child in San Francisco, the second juvenile case of H5N1 in the country.

A 'quad-demic' of winter illnesses is surging throughout the South, Midwest, and parts of the Northeast US, according to the latest surveillance data reported this week by the CDC.

COVID-19 tests across the country came back positive, but Illinois, Indiana, Michigan, Minnesota, Ohio and Wisconsin had an 8.9 percent rate.

Northwell Health partnered with Stacker to see which states have seen the biggest declines in senior health, using data from the CDC.

The Los Angeles fires continue to cause devastation across the state as evacuation shelters have been hit with a highly contagious virus.